What is Lahn (ﻟﺤﻦ)?

The word lahn literally means 'incorrect pronunciation'. In the Science of Tajweed, lahn can be described as:

'Failing to adhere to the rules of Tajweed whilst reciting the Qur'an'

There are 2 types of lahn:

  1. Jalee (ﺟﻠﻲ)- major or obvious
  2. Khafee (ﺧﻔﻲ)- minor or not obvious

To recite the Qur'an whilst being guilty of Lahney Jalee is haraam and to do so intentionally can plunge into the act of a major sin, so much that it can lead one to the brink of kufr. Whereas to commit Lahney Khafee is makrooh (undesirable, not commendable).

Lahney Jalee

  1. Not to pronounce the letters from their correct origins and their respective qualities


To recite أَﻟْﺤَﻤْﺪُ as أَﻟْﻬَﻤْﺪُ
To recite ﻳَﺮِثُ as ﻳَﺮسُ
To recite ﻃَﻴْﺮً as ﺗَﻴْﺮً
To recite ﺻَﺪَقَ as ﺻَﺪَكَ
To recite أَﻧْﻌَﻤْﺖَ as أَﻧْﺌَﻤْﺖَ
  1. To make any addition to the words


To recite إِﻳَّﺎكَ as إِﻳّﺎﻛ
To recite أَﻋْﺒُﺪُ as أَﻋْﺒُﺪُوْ
To recite رَبِّ as رﺑِّﻲْ

  1. To make omissions


To recite إِﻧَّﺎ as إِنَّ
To recite اَﻟّﺬِيْ as اَﻟّﺬِ
To recite ﻓَﻘُﻮْﻻ as ﻓَﻘُﻼَ
  1. To replace a Harakah (dammah, Fattah, kasrah) with a sukoon


To recite ﺧَﻠ۔َﻘ۔َﻚَ as ﺧَﻠ۔َﻘ۔ْﻚَ
To recite ﺳَﺮَقَ as ﺳَﺮْقَ
To recite ﻟَﻬَﺐٍ as ﻟَﻬْﺐٍ
  1. To replace a sukoon with a harakah


To recite أَوْﺣٰﻰ as أَوَﺣٰﻰ
To recite وَاﻟْﻔَﺠْﺮِ as وَاﻟْﻔَﺠَﺮِ
To recite ﺗَﺠْﺮِيْ as ﺗَﺠَﺮِيْ

Lahney Khafee

Reading the Qur'an whilst being guilty of Lahney Khafee is makrooh. It does not necessarily alter the meaning of the Qur'an. However, it does deprive the Holy Qur'an of its real elegance and beauty.


  1. To overlook the rules of the thick / full mouth (tafkheem) letters and the thin / empty mouth (tarqeeq) letters.
  2. Not to adhere to the rules of ith'har, idghaam and ikhfaa in their respective places whilst reciting the Qur'an.
  3. Not to prolong a letter when a Madd is present

(source: Basic Tajweed for Primary Madris. Shaykh Hasib Ahmed Ibn Yusuf Mayet)

Click here to view a printable summarized chart of the differences between the types of Lahn