that any time Imam 'Ali (AS) would stand for prayer, he would be like a fixed structure or a straight pillar, not moving at all, and sometimes when he would bow or prostrate, (he would be so still that] a bird would perch itself on him. Nobody was ever able to match the prayer of the Prophet (SAWA) apart from 'Ali b. Abi Talib and 'Ali b. al-Husayn (i.e. Imam Zayn al-'Abidin] (AS).'