Note that the letter before the letter of madd must have the mentioned vowels, or else madd is not applicable, and the letter is not called the madd letter. If the madd letter is Yaa’ (ي), the letter before must have a kasra, and the Yaa’ itself remains silent without any vowel.If the letter of madd is Waaw (و), the letter before must have a dammah, and Waaw remains silent without any vowel.If the letter of madd is Alif (ا), the letter before must have a fatha sign, and Alif itself remains silent without any vowel.Also, the letter must have a vowel that depends on the letter of Madd, as follows:
These letters must be silent without any vowel on them, but the letter which appears before the letter of Madd must not be hamza. Now, what are the 3 Madd letters? Al-Madd in Tajweed comes with three letters (ا, و, ي) and they are collected in the Arabic word نُوحِيهَا.
