Al-Muwatta de Malik, 55

Mohammed Ibn Al-Mounkader a rapporté que l'Envoyé d'Allah (salallahou alayhi wa salam) r (Sur lui la grâce et la paix d'Allah) fut convié à un repas; on lui servit du pain et de la viande (rôtie), il en mangea puis il fit ses ablutions et pria. Comme on lui présenta plus tard, du reste de ce mets, il en mangea puis fit la prière sans refaire ses ablutions

Yahya related to me from Malik from Muhammad ibn al-Munkadir that the Messenger of Allah, may Allah bless him and grant him peace, was invited to eat, and some bread and meat was brought to him. He ate some of it, and then did wudu and prayed. Then more of the same food was brought and he ate some more and then prayed without doing wudu