It is narrated from Sayyiduna Ibn Umar (may Allah be pleased with them both) that the Noble Prophet (peace and blessings be upon him) said: "When food is placed before any of you and the prayer is established, then do not stand for the prayer before finishing (the meal)." Sayyiduna Ibn Umar (may Allah be pleased with them both) himself also used to do the same.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 4780
Hadith Gradingحکم دارالسلام:صحيح، وهذا إسناد ضعيف لضعف عبد الله بن نافع، لكن لم يتفرد به، فقد تابعه عليه أيوب فيما يأتي برقم: 5806، وابن جريح فيما يأتي برقم: 6359