Lam Shamsiyyah And Lam Qamariyyah - A Complete Guide With Quran Examples

Lam shamsiyyah and lam qamariyyah are two Tajweed rules that govern how the “ال” (the) prefix is pronounced depending on the letter that follows it. When you understand which rule applies, this changes how a word sounds out loud, even though the spelling never changes.

When you open any page of the Quran, you’ll notice the letter ل (lam) attached to the definite article “ال” behaving in two completely different ways. Sometimes you hear it clearly. Sometimes it disappears entirely, even though it’s written on the page.

This is the difference between lam shamsiyyah and lam qamariyyah. Getting it wrong is one of the most common mistakes new Quran readers make.

This guide breaks down both rules with the full letter lists, Quran examples, and a simple method for telling them apart while reading.

What You’ll Learn In This Article

The exact definitions of lam shamsiyyah and lam qamariyyah
The full list of lam qamariyyah letters and lam shamsiyyah letters in Arabic
Real examples of both rules taken directly from the Quran
A quick, reliable way to tell which rule applies to any word
The most common mistakes readers make with these two rules

What Are Lam Shamsiyyah and Lam Qamariyyah?

The names of lam shamsiyyah and lam qamariyyah emerge from two example words: شمس (shams, “sun”) and قمر (qamar, “moon”). In the word “الشمس” (the sun), the lam is silent. In “القمر” (the moon), the lam is fully pronounced. This is where the terms “sun letters” and “moon letters” come from in English.

Lam shamsiyyah and lam qamariyyah are the two categories that every Arabic letter falls into when it follows the definite article “ال.” The category determines whether the lam sound is pronounced or not pronounced (silenced).

A bridge worth making early: this rule affects pronunciation only, and never affects spelling. The lam is always written in both cases. The only thing that changes is what your tongue does with it.

Lam Shamsiyyah – The Lam Is Written but Not Pronounced

Lam shamsiyyah is the lam that is written but not pronounced. It merges into the letter that follows it through a process called idgham (assimilation).

The letter after it takes a shaddah (doubling mark) and is pronounced with emphasis, as in الشَّمس (ash-shams), not al-shams.

Lam Qamariyyah – The Lam Is Written and Pronounced

Lam qamariyyah is the lam that is both written and pronounced clearly, with a sukoon (no vowel) on the letter lam itself.

The letter that follows it stays unshadowed and keeps its normal pronunciation. For example, القَمَر (al-qamar), where you clearly hear both the “al” and the “qamar.”

Lam Qamariyyah Letters – The 14 Moon Letters

The rule of lam qamariyyah applies to fourteen letters. When any of these follows “ال,” the lam is pronounced exactly as written.

Arabic learners often memorize this phrase “ابغِ حجَّك وخف عقيمَه” (abghi hajjaka wakhaf ‘aqimah). This strings together the fourteen letters of lam qamariyya.

List of the 14 Lam Qamariyyah Letters

The fourteen letters of lam qamariyyah are: أ ب ج ح خ ع غ ف ق ك م ه و ي (hamza/alif, ba, jeem, ha, kha, ain, ghain, fa, qaf, kaf, meem, ha, waw, ya).

How to Pronounce Lam Qamariyyah Clearly

Pronounce the lam with a clear sukoon ْ, then move straight into the following letter without merging the two sounds. For instance, القرآن (al-Qur’an), the “al” stays fully audible before “Qur’an” begins. There’s no blending between the two.

At Learn Quran Tajweed, this is one of the first rules our instructors drill with new students, because a clear, distinct sukoon on the lam separates correct lam qamariyyah pronunciation from a mumbled one.

Lam Shamsiyyah Letters – The 14 Sun Letters

The remaining fourteen letters of the Arabic alphabet trigger the lam shamsiyyah rule. When “ال” is followed by one of these letters, the lam disappears in pronunciation, and the next letter is doubled instead.

A useful memorization line for these is the couplet: “طِبْ ثُمَّ صِلْ رَحِمًا تَفُزْ صِفْ ذَا نِعَمْ، دَعْ سُوءَ ظَنٍّ زُرْ شَرِيفًا لِلْكَرَمْ”. The first letter of every word in this line is a lam shamsiyyah letter.

List of the 14 Lam Shamsiyyah Letters

The fourteen letters of lam shamsiyyah are: ت ث د ذ ر ز س ش ص ض ط ظ ن ل (taa, thaa, dal, dhal, raa, zay, seen, sheen, saad, daad, ta [heavy], zha, noon, lam).

Why Lam Shamsiyyah Merges With the Next Letter

All fourteen lam shamsiyyah letters share one trait. They’re articulated with the tip of the tongue, at or near the same point of articulation as the lam itself. Because the two sounds are produced so close together in the mouth, the lam merges into the following letter instead of being pronounced separately.

It is the same mechanism behind idgham elsewhere in Tajweed. That merger is marked in the Mushaf with a shaddah ّ over the letter that follows “ال,” which is the visual cue that the lam before it is silent.

Building fluency with this kind of letter-group logic is exactly what a structured Tajweed course focuses on. Recognizing the pattern instead of memorizing every word individually is what makes reading speed up naturally over time.

How to Identify Lam Shamsiyyah and Lam Qamariyyah in the Mushaf

The good news is you rarely need to guess. The Mushaf usually marks the answer for you directly on the page.

Look at the letter immediately after “ال.” If it carries a shaddah ّ, the lam is shamsiyyah and stays silent. If the lam itself carries a small sukoon mark ْ and the following letter has no shaddah, it’s lam qamariyyah, and it is pronounced.

a. Use Shaddah and Sukoon to Tell Them Apart

This is the main distinction to hold onto: lam shamsiyyah is written-not-spoken, while lam qamariyyah is written-and-spoken. Every other detail in this guide flows from that one line.

b. Remember the Sun and Moon Letters

If you’re reading a word you haven’t seen the markings on yet, check which of the two 14-letter lists the letter belongs to.

There’s no exception list to memorize beyond these. Every Arabic letter is either a sun letter or a moon letter. There is no overlap and no third category.

Lam Shamsiyyah Examples in the Quran

The following Quranic examples show how Lam Shamsiyyah works when ال comes before a sun letter. Notice how the lam becomes silent while the following letter is pronounced with emphasis.

الرَّحْمَـٰنِ — from “بِسْمِ اللَّهِ الرَّحْمَـٰنِ الرَّحِيمِ.” The lam before ر is silent; the ر is doubled.
الذِّكْرِ — from “مِنَ الْآيَاتِ وَالذِّكْرِ الْحَكِيمِ.” The lam merges into ذ.
الصَّلَاةَ — from “وَيُقِيمُونَ الصَّلَاةَ.” The lam merges into ص.
النَّاسِ — from “قُلْ أَعُوذُ بِرَبِّ النَّاسِ.” The lam merges into ن.
السَّاجِدِينَ — from “وَكُن مِّنَ السَّاجِدِينَ.” The lam merges into س.

Lam Qamariyyah Examples in the Quran

These Quranic examples show Lam Qamariyyah when ال comes before a moon letter. Unlike Lam Shamsiyyah, the lam remains clearly pronounced before the following letter.

الْغَيْبِ — from “الَّذِينَ يُؤْمِنُونَ بِالْغَيْبِ.” The lam is pronounced clearly before غ.
الْقُرْآنَ — from “عَلَّمَ الْقُرْآنَ.” The lam is fully audible before ق.
الْإِنسَانَ — from “خَلَقَ الْإِنسَانَ.” The lam is pronounced before the hamza.
الْمِيزَانَ — from “وَوَضَعَ الْمِيزَانَ.” The lam is pronounced before م.
الْكَهْفِ — from “أَصْحَابَ الْكَهْفِ.” The lam is pronounced before ك.

Common Mistakes When Learning Lam Shamsiyyah And Lam Qamariyyah

New readers and beginners tend to make three definite errors with this rule. Recognizing them speeds up correction significantly.

1. The first common error is pronouncing the lam shamsiyyah words out of habit, especially when reading transliterated Quran text where “al-” is written for every word regardless of the actual rule. This is a transliteration limitation, not a pronunciation guide.

2. The second recurrent error is under-doubling the sun letter, saying it too lightly instead of holding the shaddah for its full length.

3. The third widespread error is skipping the sukoon pause on lam qamariyyah words and rushing straight into the next letter. This blurs the “al” sound rather than keeping it distinct.

Every one of these errors is a rhythm problem more than a knowledge problem. That is why they usually surface in live recitation rather than in written exercises. Here comes the importance of practicing out loud with a qualified teacher who catches these errors faster than self-study alone.

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Conclusion

Lam shamsiyyah and lam qamariyyah both attach to the same “ال” prefix, but they behave in opposite ways: shamsiyyah silences the lam and doubles the letter after it, while qamariyyah keeps the lam pronounced with a clear sukoon.

The fourteen sun letters and fourteen moon letters cover the entire Arabic alphabet, so every word with “ال” falls cleanly into one category or the other.

Once you can recognize the shaddah mark as your visual cue, applying lam shamsiyyah and lam qamariyyah correctly becomes a matter of habit rather than memorization.

Frequently Asked Questions

What Is The Difference Between Lam Shamsiyyah And Lam Qamariyyah?

Lam shamsiyyah is written but not pronounced, with the following letter doubled instead. Lam qamariyyah is written and pronounced clearly, with a sukoon on the lam and no doubling on the next letter.

What Are The Lam Qamariyya Letters In Arabic?

The lam qamariyya letters are أ ب ج ح خ ع غ ف ق ك م ه و ي — fourteen letters, often memorized through the phrase “ابغِ حجَّك وخف عقيمَه.”

How Many Lam Shamsiyyah Letters Are There?

There are fourteen lam shamsiyyah letters: ت ث د ذ ر ز س ش ص ض ط ظ ن ل. Together with the fourteen qamariyya letters, they account for the full Arabic alphabet.

Why Is Lam Shamsiyyah Not Pronounced?

Lam shamsiyyah is silent because it assimilates into the following letter through idgham, a merging process that happens when two sounds are articulated close together in the mouth. The shaddah mark on the next letter shows this merger visually.

How Can I Quickly Identify Lam Shamsiyyah While Reading The Quran?

Check the letter right after “ال” for a shaddah mark. A shaddah means the lam is shamsiyyah and silent; no shaddah, paired with a sukoon on the lam itself, means it’s qamariyyah and pronounced.

Lam Shamsiyyah And Lam Qamariyyah – A Complete Guide With Quran Examples

What You’ll Learn In This Article

What Are Lam Shamsiyyah and Lam Qamariyyah?

Lam Shamsiyyah – The Lam Is Written but Not Pronounced

Lam Qamariyyah – The Lam Is Written and Pronounced