Maliks Muwatta Book 2, Hadith Number 25.
Section : Discontinuing Doing Wudu on Account of Eating Cooked Food.
Yahya related to me from Malik from Abu Nuaym Wahb ibn Kaysan that he heard Jabir ibn Abdullah al-Ansari saying, “I saw Abu Bakr as-Siddiq eat meat and then pray without doing wudu.”