Musnad Abu Ya'la al-Mawsili 111:122

Abu Khaythama narrated to us, Makhlad ibn Yazid narrated to us, Ibn Jurayj narrated to us, from ‘Umar ibn ‘Ata’ ibn Abi al-Khuwar, from Ibn ‘Abbas, who said: I saw the Messenger of Allah (ﷺ) eating a piece of meat with bone (an ‘arq), then the mu’adhdhin came to him, so he put it down. Then he stood up for the prayer and did not touch water.