Al-Lu'lu Wal-Marjan 1772 — The Book About the Characteristics of the Hypocrites and Orders Concerning Them.

Anas Narrated from:

There was a Christian who embraced Islâm and read Surat Al-Baqarah and Âl‘Imrân, and he used to write (the revelations) for the Prophet صلى الله عليه وسلم. Later on he reverted to Christianity again and he used to say: “Muhammad (صلى الله عليه وسلم) knows nothing but what I have written for him.”Then Allâh تعالى caused him to die, and the people buried him, but in the morning they saw that the earth had thrown his body out. They said, "This is the act of Muhammad (صلى الله عليه وسلم) and his companions. They dug the grave of our companion and took his body out of it because he had run away from them."They again dug the grave deeply for him, but in the morning they again saw that the earth had thrown his body out. They said, "This is an act of Muhammad (صلى الله عليه وسلم) and his companions. They dug the grave of our companion and threw his body outside it, for he had run away from them." They dug the grave for him as deep as they could, but in the morning they again saw that the earth had thrown his body out. So they believed that what had befallen him was not done by human beings and had to leave him thrown (on the ground).( Sahîh Al-Bukhârî, Hadîth No. 814, Vol. 4)