Sahih al-Bukhari 527
Prayer
Small acts around the five that change their weight.
Sahih Muslim 725
Sahih Muslim 728
Sahih al-Bukhari 614
Sunan Abi Dawud 521 (sahih)
Sahih Muslim 597
Sunan an-Nasa'i (al-Kubra) 9928
Sahih al-Bukhari 990
Sahih al-Bukhari 645
Sahih al-Bukhari 1163