مُسْنَدُ أَحْمَدَ
Musnad Ahmad 2006
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn ‘Abbas that the Messenger of Allah (ﷺ) drank some milk then he rinsed out his mouth and said: “It is somewhat greasy.”
Musnad Ahmad 2007Sahih (Darussalam) [, alBukhari (211) and Muslim (358)]