Sunan an-Nasa'i 1901

‘Abd al-Jabbar ibn al-‘Ala’ ibn ‘Abd al-Jabbar narrated to us, from Sufyan, from ‘Amr, who said: I heard Jabir say: The Prophet (peace and blessings of Allah be upon him) came to the grave of ‘Abd Allah ibn Ubayy after he had been placed in his grave, and stood over it. He ordered that the man be brought out, and he was brought out for him. He placed him on his knees, put his own shirt on him, and blew some of his saliva over him. Allah, Exalted is He, knows best.