Narrated to me Harun ibn 'Abdullah: narrated to us Hajjaj ibn Muhammad — and (also) narrated to us 'Abd ibn Humayd: informed me Abu 'Asim, both from Ibn Jurayj — and (also) narrated to us Zuhayr ibn Harb, and the wording is his: narrated to us Rawh ibn 'Ubadah: narrated to us Ibn Jurayj, who said: I heard 'Ata' saying: I heard Ibn 'Abbas saying: The Messenger of Allah, peace and blessings be upon him, said: "When one of you eats from the food, let him not wipe his hand until he has licked it or had it licked."