‏الصلاة : Hadeeth No:961 Al-Bara' reported: When we were (in prayer) with the Messenger of Allaah Allaah (sallAllaahu alayhi wa sallam) none of us benfft his back till we saw he prostrated. Zuhair and others reported:" till we saw him prostrating"....

‏الألفاظ من الأدب وغيرها‏ : Hadeeth No:5597 Abu Umama b. Sahl b. Hunaif, on the authority of his father, reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: None of you should say:" My soul has become evil," but he should say:" My soul has become remorseless."...