It is narrated from Ibne Abbas that Holy Prophet
(s.a.w.a.) said,
“I saw Hamza and Jafar (at-Tayyar) in my dream
such that they were sitting with a plate of fruit in
front of them. I went up to them and said, may by
parents be sacrificed upon you! Which action did
you find more beneficial (for the hereafter)? They
replied, may our parents be sacrificed upon you –
we found the following actions to be most
beneficial – reciting salawaat, quenching the thirst of the thirsty and the love of Ali Ibne Abi Talib
(a.s.).
Ref : Fazila e Salawaat