‏الحج : Hadeeth No:3076 Ibn Abbas (Allaah be pleased with them) reported that Allaah's Prophet (sallAllaahu alayhi wa sallam) entered the Ka'ba, and in it there were six pillars, and he stood near a pillar and made supplication, bnt did not observe the prayer....

‏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"....