--- title: "Why Does Noon Become Meem Before Ba? The Reason for Iqlab" description: "The reason for iqlab: the meem shares ba's articulation point and noon's ghunnah, which eases the move between them. And how it differs from ikhfa shafawi." url: "https://iqraairtqi.com/en/blogs/rules-of-tajweed-the-rule-of-ikhlaab" date: "2026-08-23T16:01:51+00:00" --- # Why Does Noon Become Meem Before Ba? The Reason for Iqlab
- 🧠 **The reason for iqlab**, as tajweed scholars give it: the meem combines the articulation point of ba (the lips) with the ghunnah of noon. - 👅 Noon comes from the tip of the tongue and ba from the lips, so the two are far apart. - 👄 Meem comes from the lips like ba and has a ghunnah like noon, so it eases the move between them. - ⚠️ The change is in pronunciation only; the noon is not rewritten in the Mushaf.
Why does the noon not stay a noon before ba? -------------------------------------------- Noon comes from the tip of the tongue with the gum above it, and ba comes from the lips. Moving straight between two distant points takes effort and weakens the ghunnah, which is why the noon is not left as it is before ba. What does the meem do here? --------------------------- Tajweed scholars explain that the meem is the fitting letter for the move, because it shares its articulation point with ba and its ghunnah with noon. So the noon turns into a meem, and the meem is hidden before ba with a two-count ghunnah. The table sums it up:
LetterArticulation pointGhunnah
Noontip of the tongueyes
Meemthe lipsyes
Bathe lipsno
Iqlab and ikhfa shafawi: what is the difference? ------------------------------------------------ In both you pronounce a hidden meem before ba with a ghunnah. The difference is where that meem comes from. In **iqlab** it comes from a noon sakinah or tanween, as in ﴿مِن بَعْدِ﴾. In **ikhfa shafawi** it is a meem sakinah to begin with, as in ﴿تَرْمِيهِم بِحِجَارَةٍ﴾. For a full comparison read [ikhfa haqiqi vs ikhfa shafawi](/blogs/rules-of-ikhfa). How to use this reason in practice ---------------------------------- 1. Remember that ba comes from the lips, so do not force a hard stop of the sound before it. 2. Prepare your lips for ba as you move from the noon. 3. Let the ghunnah sound right before the ba for two counts. 4. Repeat ﴿مِن بَعْدِ﴾ slowly, then at reading speed, and have your teacher listen. Wrong ideas about the reason for iqlab -------------------------------------- - **"A meem is written in place of the noon":** not true. The spelling stays and a small meem is placed as a sign of the change. - **"The change makes the meem fully clear":** the meem is hidden with the ghunnah, not fully pronounced. - **"The reason replaces a teacher":** the reason helps understanding, but correct pronunciation is learned by listening to a skilled teacher. For the full rule and its examples read [Iqlab in tajweed: definition, letter and examples](/blogs/iqlab-comprehensive-tajweed-guide). To practise this with a teacher who follows your progress, start with a free trial class at our [online Quran academy](/en/online-quran-academy).
#### Frequently asked questions
**Q: Why does the noon turn into a meem and not another letter?**A: Because the meem shares the articulation point of ba and the ghunnah of noon, so it joins the two.
**Q: Does the spelling of the noon change in the Mushaf?**A: No. The change is in pronunciation, and a small meem is placed as a sign of it.
**Q: What is the difference between iqlab and ikhfa shafawi?**A: In iqlab the meem comes from a noon or tanween; in ikhfa shafawi it is a meem sakinah to begin with.
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