Jami` at-Tirmidhi 80

Jabir narrated:"Allah's Messenger went out and I went with him. He entered upon a woman from the Ansar. She slaughtered a sheep and he ate from it; and she brought a basket with ripe dates and he ate from it. Then he performed Wudu for Zuhr and prayed. Then he finished, so she brought him something from the remainder of the sheep. So he ate it, then prayed Asr and did not perform Wudu