‏الصلاة : Hadeeth No:855 Anas b. Malik reported. The Messenger of Allaah (sallAllaahu alayhi wa sallam) said: Perform bowing and prostration well. By Allaah. I see you even if you are behind me, or he said'. (1 see you) behind my back when you bow or prostrate....

‏الصيام : Hadeeth No:2418 A hadith like this has been transmitted by Sahl b. Sa'd....