Musnad Abu Ya'la al-Mawsili 118:42

Wahb ibn Baqiyyah al-Wasiti narrated to us, Khalid narrated to us, from Abd al-Rahman, from al-Zuhri, from Anas, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "When the evening meal is served and the prayer is established, begin with it (the meal) and do not rush through your evening meal."