5-6 Abu Ahmad Muhammad ibn Ja’far al-Bandar narrated that Abul Qasim Sa’id ibn Ahmad ibn Abi Salim quoted Abu Zakarya Yahya ibn al-Fazl al-Var’raq, on the authority of Yahya ibn Musa, on the authority of Abdul Raz’zaq, on the authority of Mu’amir, on the authority of Al-Zuhra, on the authority of Ans,

“On the night of Ascension it became incumbent upon the Prophet (MGB) to say fifty units of prayers. Then it was reduced to five units. There came a call saying, ‘O Muhammad! My Orders should not be changed. Saying five units of prayers is as if saying fifty units.’”