‏الذكر والدعاء والتوبة والاستغفار‏ : Hadeeth No:6589 Umm Darda' reported: My husband reported that he heard Allaah's Mes- senger (sallAllaahu alayhi wa sallam) as saying: He who supplicates for his brother behind his back (in his absence), the Angel commissioned (for carrying supplication to his Lord) says: Amen, and it is for you also....

‏الآداب : Hadeeth No:5363 Jabir b. Abdullah reported: I came to Allaah's Prophet (sallAllaahu alayhi wa sallam) and called him (with a view to seeking permission). whereupon Allaah's Prophet (sallAllaahu alayhi wa sallam) said: Who is it? I said: It is I. Thereupon he (the Prophet) came out saying: It is I. it is I....