مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2557
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn 'Abbas (رضي الله عنه) said: When the Messenger of Allah (ﷺ) drank, he would pause to breathe twice whilst drinking. And my father wrote after this hadeeth: I do not think 'Abdullah heard this hadeeth (directly).
Musnad Ahmad 2571Sahees because of corroborating evidence and its isnad is da