What did `Imran bin Husain and Mutarrif bin `Abdullah witness when `Ali bin Abi Talib led them in prayer that reminded them of the prayer of Prophet Muhammad (saw)?
 Narrated Mutarrif bin `Abdullah:                     `Imran bin Husain and I offered the prayer behind `Ali bin Abi Talib. When `Ali prostrated, he said the Takbir, when he raised his head, he said the Takbir and when he got up for the third rak`a he said the Takbir. On completion of the prayer `Imran took my hand and said, "This (i.e. `Ali) made me remember the prayer of Muhammad" Or he said, "He led us in a prayer like that of Muhammad."