Al-Adab Al-Mufrad, Book 6, Hadith 26 (In-Book) ⓘ
Jabir said, "A man came to the Prophet, may Allah bless him and grant him peace, to complain to him about the enmity of his neighbour. While he was sitting between the Corner and the Maqam, the Prophet, may Allah bless him and grant him peace, approached with a man who was wearing a white garment. They went to the Maqam where they were praying for the dead. He went up to the Prophet, may Allah bless him and grant him peace, and said, 'May my mother and my father be your ransom, Messenger of Allah! Who is this man I see with you wearing the white garment?' 'You saw him?' he asked. 'Yes,' the man replied. He said, 'Then you have seen much good. That was Jibril, may Allah bless him and grant him peace, the Messenger of my Lord. He kept on recommending that I treat my neighbours well until I thought that he would order me to make them my heirs.'"
حَدَّثَنَا مَخْلَدُ بْنُ مَالِكٍ، قَالَ: حَدَّثَنَا أَبُو زُهَيْرٍ عَبْدُ الرَّحْمَنِ بْنُ مَغْرَاءَ، قَالَ: حَدَّثَنَا الْفَضْلُ يَعْنِي ابْنَ مُبَشِّرٍ قَالَ: سَمِعْتُ جَابِرًا يَقُولُ: جَاءَ رَجُلٌ إِلَى النَّبِيِّ صلى الله عليه وسلم يَسْتَعْدِيهِ عَلَى جَارِهِ، فَبَيْنَا هُوَ قَاعِدٌ بَيْنَ الرُّكْنِ وَالْمَقَامِ إِذْ أَقْبَلَ النَّبِيُّ صلى الله عليه وسلم وَرَآهُ الرَّجُلُ وَهُوَ مُقَاوِمٌ رَجُلاً عَلَيْهِ ثِيَابٌ بَيَاضٌ عِنْدَ الْمَقَامِ حَيْثُ يُصَلُّونَ عَلَى الْجَنَائِزِ، فَأَقْبَلَ النَّبِيُّ صلى الله عليه وسلم فَقَالَ: بِأَبِي أَنْتَ وَأُمِّي يَا رَسُولَ اللهِ، مَنِ الرَّجُلُ الَّذِي رَأَيْتُ مَعَكَ مُقَاوِمَكَ عَلَيْهِ ثِيَابٌ بِيضٌ؟ قَالَ: أَقَدْ رَأَيْتَهُ؟ قَالَ: نَعَمْ، قَالَ: رَأَيْتَ خَيْرًا كَثِيرًا، ذَاكَ جِبْرِيلُ صلى الله عليه وسلم رَسُولُ رَبِّي، مَا زَالَ يُوصِينِي بِالْجَارِ حَتَّى ظَنَنْتُ أَنَّهُ جَاعِلٌ لَهُ مِيرَاثًا.
also referenced under: Hadith 126 (Reference) & Book 6, Hadith 126 (English)