مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2613
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Ibn 'Abbas (رضي الله عنه) said: A man said: How much water is enough for wudoo’? He said: A mudd. He said: How much is sufficient for ghusl? He said: A sa'. The man said: That is not enough for me. He said: May you have no mother! It was enough for one who is better than you, the Messenger of Allah (ﷺ).
Musnad Ahmad 2628Saheeh because of corroborating evidence and its isnad is da