Tajweed RulesThe madd (prolongation) without which the letter itself cannot stand, and which does not depend on a hamzah or a sukun; it is prolonged for the duration of two harakahs. The letters of madd are: alif preceded by a fathah, waw preceded by a dammah, and ya preceded by a kasrah.
قَالَ — يَقُولُ — قِيلَ — نُوحِيهَاSource:تحفة الأطفال

