Hazrat Abu Hurairah (Radi Allahu Anhu) reports that Hazrat Rasulullah (SallAllahu alaihi wa Sallam) said, “Whosoever sends salutations upon me once, Allah Ta’ala will send salutations (i.e. reward him and shower His mercy) upon him ten times.”
– The Gift of Durood and Salaam(Jointly published by: WIFAQUL ‘ULAMA (SA) & Madrasah Ta’leemuddeen)