Abdullah bin Aamir narrates from his father: I remember well about the Prophet Muhammad (peace be upon him), when he had Uthman bin Maz'oon (may Allah be pleased with him) buried (before that), he (peace be upon him) offered his funeral prayer and said takbeer over him four times. (Afterwards, after the burial) the Prophet (peace be upon him) took soil in both his hands three times and placed it on his grave. The Prophet (peace be upon him) was standing at the head side of the grave.