Q. Do you have to seek the forgiveness of a person who you backbite or is Taubah enough?
A. In this regard, there are two situations:
a) The person who had been backbit is unaware of it. In this case, Taubah and Istighfaar will be sufficient.
b) The person who had been backbit is aware of it. In this case, Taubah and Istighfaar will not suffice. Rather, it will be necessary for a person to seek the forgiveness of whom he had backbit. (Shaami 6/410)
Allah Ta’ala Knows Best
Mufti Ismaeel Bassa
This answer was collected from TheMufti.com, which is a fatwa portal managed by Mufti Ismaeel Bassa from South Africa.