مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2607
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated that Sa'eed bin al-Musayyab said: I heard Ibn ‘Abbas (رضي الله عنه) say: I heard the Messenger of Allah (ﷺ) say: “The likeness of the one who gives charity then takes back his charity is that of one who vomits, then eats his vomit."
Musnad Ahmad 2622Its isnad is saheeh, al-Bukhari (2621) and Muslim (1622)]