Sahih Bukhari 776

Narrated Abu Ma`mar: We said to Khabbab Did Allah's Apostle used to recite in Zuhr and `Asr prayers? He replied in the affirmative. We said, How did you come to know about it? He said, By the movement of his beard. ..

Narrated `Abdullah bin Abi Qatada: My father said, The Prophet used to recite Al-Fatiha along with another Sura in the first two rak`at of the Zuhr and `Asr prayers. A verse or so was audible at times and he used to prolong the first rak`a. ..

Narrated `Abdullah bin Abi Qatada: My father said, The Prophet used to prolong the first rak`a of the Zuhr prayer and shorten the second one and used to do the same in the Fajr prayer. ..

Narrated Abu Huraira: The Prophet said, Say Amin when the Imam says it and if the Amin of any one of you coincides with that of the angels then all his past sins will be forgiven. Ibn Shihab said, Allah's Apostle used to Say Amin. ..

Narrated Abu Huraira: Allah's Apostle said, If any one of you says, Amin and the angels in the heavens say Amin and the former coincides with the latter, all his past sins will be forgiven. ..

Narrated Abu Huraira: Allah's Apostle said, Say Amen when the Imam says 'Ghairi l-maghdubi `alaihim wala d-daalleen' (not the path of those who earn Your Anger (such as Jews) nor of those who go astray (such as Christians)); all the past sins of..