Hadithcore
Mishkat al-Masabih, 1057

‘A’isha said she heard God’s Messenger say, “Prayer is not to be said when food is served, or when the calls of nature prevent it.” Muslim transmitted it.

وَعَنْ عَائِشَةَ رَضِيَ اللَّهُ عَنْهَا أَنَّهَا قَالَتْ: سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسلم يَقُول: «لَا صَلَاة بِحَضْرَة طَعَام وَلَا هُوَ يدافعه الأخبثان»

References1 variant
In-Book Reference
Book 4, Hadith 475