Musannaf Ibn Abi Shaybah

Hazrat Bara’ narrates that we went with the Prophet (peace and blessings be upon him) to attend the funeral of an Ansari. When we reached the graveyard and the grave had not yet been prepared, the Noble Prophet (peace and blessings be upon him) sat down, and we also sat around him in such a manner as if birds were sitting on our heads. The Prophet (peace and blessings be upon him) had a stick in his blessed hand with which he was scratching the ground. The Prophet (peace and blessings be upon him) raised his blessed head and said: Seek refuge with Allah from the punishment of the grave.