Riyad as-SalihinChapter 2Hadith 58
Full Sharh — Riyad as-Salihin 58
عن أبى هريرة رضى الله عنه قال: قال رسول الله صلى الله عليه وسلم : "إذا دعي أحدكم ، فليجب، فإن كان صائما فليصل، وإن كان مفطراً فليطعم" .((رواه مسلم))
English Translation
Abu Hurairah (May Allah be pleased with him) reported:: The Messenger of Allah (ﷺ) said, "When any of you is invited to a meal, he should accept the invitation. If he is observing Saum (fasting), he should supplicate for the betterment of the host and if he is not fasting, he should eat." .
Source
Riyad as-Salihin(رياض الصالحين)
The Book About the Etiquette of Eating
Hadith Number
58