Musnad Ahmad 1156:204

Yazid ibn Harun narrated to us, he said: Muhammad ibn Ishaq narrated to us, from Abdullah ibn Rafi’, the freed slave of Umm Salamah, he said: Umm Salamah narrated to us, she said: I heard the Messenger of Allah, peace and blessings of Allah be upon him, saying: "When the prayer is present, and the evening meal is present, then begin with the evening meal."