Jami` at-Tirmidhi 1847

Narrated Ibn 'Abbas: "The Messenger of Allah (ﷺ) cae out from the toilet and some food was brought to him. They said: 'Shall we bring you some water for Wudu'?' He said: 'I have only been ordered to perform Wudu' when standing for Salat.'" [Abu 'Eisa said:] This Hadith is Hasan [Sahih]. 'Amr bin Dinar has reported it from Sa'eed bin Al-Huwairith, from Ibn 'Abbas. 'Ali bin Al-Madini said: 'Sufyan Ath-Thawri disliked washing the hands before eating food, and he disliked placing the bread under the bowl