English translation
2441. It was reported from 'Abdullāh bin 'Abbās, from Umm Al-Faḍl bint Al-Hārith, that some people disputed in front of her on the day of 'Arafah about whether the Messenger of Allāh ﷺ was fasting or not, some of them said: 'He is fasting,' and some of them said: 'He is not fasting.' So I sent to him a cup of milk while he was halted atop his camel at 'Arafāt, and he drank from it." (Saḥih)
