It is narrated from Hazrat Anas (may Allah be pleased with him) that the Prophet (peace and blessings be upon him) said: When the night meal is brought before you and the prayer is established, then eat the food first.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 11971
Hadith Gradingحکم دارالسلام:حديث صحيح، وهذا اسناد حسن كسابقة، خ: 213