Riyad as-Salihin 739 — The Book About the Etiquette of Eating

Umar b. Abu Salama Narrated from:

I was a boy under the care of Messenger of Allah (ﷺ), and as my hand used to wander around in the dish, he (ﷺ) said to me once, "Mention Allah's Name (i.e., say Bismillah), eat with your right hand, and eat from what is in front of you." [Al-Bukhari and Muslim].