Al-Adab Al-Mufrad, Hadith 104 ⓘ
Ibn 'Umar reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "Jibril kept on recommending that I treat my neighbours well until I thought that he would order me to treat them as my heirs."
حَدَّثَنَا مُحَمَّدُ بْنُ مِنْهَالٍ، قَالَ: حَدَّثَنَا يَزِيدُ بْنُ زُرَيْعٍ، قَالَ: حَدَّثَنَا عُمَرُ بْنُ مُحَمَّدٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عُمَرَ قَالَ: قَالَ رَسُولُ اللهِ صلى الله عليه وسلم: مَا زَالَ جِبْرِيلُ يُوصِينِي بِالْجَارِ حَتَّى ظَنَنْتُ أَنَّهُ سَيُوَرِّثُهُ.
also referenced under: Book 6, Hadith 4 (In-Book) & Book 6, Hadith 104 (English)