(20) باب جَوَازِ اسْتِتْبَاعِهِ غَيْرَهُ إِلَى دَارِ مَنْ يَثِقُ بِرِضَاهُ بِذَلِكَ وَيَتَحَقَّقُهُ تَحَقُّقًا تَامًّا وَاسْتِحْبَابِ الاِجْتِمَاعِ عَلَى الطَّعَامِ
Anas b. Malik reported this hadith (with a slight variation of wording) Then AlIah's Messenger (ﷺ) ate and the people of his house also ate. but (still) there was left a surplus, which they sent to their neighbours. (ID)
Reference (ID): Sahih Muslim 2040 f (ID)
In-book reference (ID): Book 36, Hadith 195 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Book 23, Hadith 5063 (ID)