مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3410
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn 'Abbas (رضي الله عنه) said. The Messenger of Allah (ﷺ) ate some meat from a bone, then he prayed and he did not do wudoo.
Musnad Ahmad 3433A hadeeth saheeh, and its isnad is da'eef]