The Book of Prayers (Kitab Al-Salat)
Muslim :: Book 4 : Hadith 1137
Ibn 'Umar reported: The Messenger of Allah (may peace be upon him) said: When the supper is served to any one of you and the prayer also begins. (in such a case) first take supper, and do not make haste (for prayer) till you have (taken the food).
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