Dua is a weapon of a believer

[ Dua is a weapon of a believer. ] 
Keep brothers and sisters in ur dua

It was narrated that Abu Hurayrah (may Allah be pleased with him) said: The Messenger of Allah (peace and blessings of Allah be upon him) offered the funeral prayer and said: “O Allah, forgive our living and our dead, our young ones and our old ones, our males and our females, those of us who are present and those who are absent. O Allah, whomever You keep alive, keep him alive with faith and whomever youcause to die, cause him to die in Islam. Do not deprive us of the reward and do not cause us to go astray after this.”

Narrated by at-Tirmidhi, 1024; Abu Dawood, 3201; an-Nasai, 1986