(509) بَابُ مَا لا يُسْتَأْذَنُ فِيهِ
A'yan al-Khwarizmi said, "We came to Anas ibn Malik while he wassitting his foyer with anyone else with him. My companion greeted him andsaid, 'May I come in?' Anas said, 'Come in. This is a place where no oneasks for permission.' He had food brought to us and we ate. Then a cupof sweet nabidh was brought and we drank and were full."
Reference: Al-Adab Al-Mufrad 1097
In-book reference: Book 43, Hadith 47
English translation: Book 43, Hadith 1097