سورة الواقعة

The Prophet (peace be upon him and his family): When Allah, Blessed and Exalted, sent down this verse: فَسَبِّحْ بِاسْمِ رَبِّکَ الْعَظِیمِ [Therefore glorify the name of your Lord, the Great], the Messenger of Allah (peace be upon him and his family) said: "Place this dhikr in your ruku (bowing)."

Imam Ali (peace be upon him): O Messenger of Allah (peace be upon him and his family)! What shall I say in the sajda (prostration) of the prayer? Then it was revealed: "Glorify the name of your Most High Lord!" (al-A'la/1). He said: "What shall I say in ruku (bowing)?" Then it was revealed: فَسَبِّحْ بِاسْمِ رَبِّکَ الْعَظِیمِ [Therefore glorify the name of your Lord, the Great]. So Ali (peace be upon him) was the first person to say it, and he prayed with the Prophet (peace be upon him and his family) seven years and some months before all people, and he prayed together with the Muslims for fourteen years, and thirty years after the Prophet (peace be upon him and his family).

Imam Ali (peace be upon him): Juwayriya ibn Mus-hir said: We were returning with Amir al-Mu'minin Ali ibn Abi Talib (peace be upon him) from the war of the Khawarij until we reached the land of Babil, and the Imam (peace be upon him) turned to me and said: "O Juwayriya ibn Mus-hir, indeed Allah, the Mighty and Majestic, says: فَسَبِّحْ بِاسْمِ رَبِّکَ الْعَظِیمِ [Therefore glorify the name of your Lord, the Great], and I called upon Allah, the Mighty and Majestic, by His Great Name and asked Him, and He returned the sun for me."