A man, whose name is not mentioned, relates that he heard Sayyiduna Mu'awiyah (may Allah be pleased with him) say: I saw the Messenger of Allah (peace and blessings be upon him) drink milk, then he (peace and blessings be upon him) stood up and prayed without performing ablution (wudu).
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 16977