Sunan An-Nasa'i

It was narrated from Hudhaifah that:He prayed with the Messenger of Allah during Ramadan. He bowed and said: ""Subhana Rabbiyal-Azim while bowing, for as long as he had stood. Then he sat down and said: ""Rabbighfirli, Rabbighfirli (Lord forgive me, Lord forgive me),"" for as long as he had stood. Then he prostrated and said: ""Subhana Rabbiyal-'Ala for as long as he had stood And he prayed no more than four rak'ahs when Bilal came for Al-Ghadah