مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3440
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
‘Umar bin ‘Ata’ bin Abil-Khuwar narrated that he heard Ibn 'Abbas say: Whilst the Messenger of Allah (ﷺ) was eating a bone with some meat on it, the mu'adhdhin came to him, so he put it down and got up to pray, and he did not do wadoo’.
Musnad Ahmad 3463Its isnad is saheeh]