Aboo Hurayrah (r.a) narrated that Allaah’s Messenger ﷺ said,”
Whoever says: “Laa ilaaha illAllaah wahdahu la shareekalah, lahulmulk wa lahulhamd wa huwa ‘ala kulli shay’in qadeer,”* One hundred times will get the same reward for freeing ten slaves; and one hundred good deeds will be written in his account, and one hundred sins will be deducted from his account, and it will be a shield for him from Satan on that day till night, and nobody will be able to do a better deed except the one who does more than him.”
(Sahee Bukhaaree : Hadees no : 6403)