Musannaf Ibn Abi Shaybah

Hazrat Umm Mubashir narrates that the Noble Prophet (peace and blessings be upon him) came to me while I was near one of the walls of Banu Najjar, where there were graves of people from the time of ignorance (who had died during the age of ignorance). She says that then the Noble Prophet (peace and blessings be upon him) left, and I heard him saying, "O people! Seek Allah's protection from the punishment of the grave." I asked, "O Messenger of Allah! Is there punishment in the grave?" He (peace and blessings be upon him) replied, "Indeed, they are punished in their graves, and all animals hear it."