‘Abdullah ibn ‘Amr ibn al-‘As reported that the Messenger of Allah, may Allah bless him and grant him peace, said, “The best of companions in the sight of Allah Almighty is the best of them towards his companion, and the best of neighbours in the sight of Allah is the best of them towards his neighbour.”
حَدَّثَنَا عَبْدُ اللهِ بْنُ يَزِيدَ، قَالَ‏:‏ حَدَّثَنَا حَيْوَةُ، قَالَ‏:‏ أَخْبَرَنَا شُرَحْبِيلُ بْنُ شَرِيكٍ، أَنَّهُ سَمِعَ أَبَا عَبْدِ الرَّحْمَنِ الْحُبُلِيَّ يُحَدِّثُ، عَنْ عَبْدِ اللهِ بْنِ عَمْرِو بْنِ الْعَاصِ، عَنْ رَسُولِ اللهِ صلى الله عليه وسلم أَنَّهُ قَالَ‏:‏ خَيْرُ الأَصْحَابِ عِنْدَ اللهِ تَعَالَى خَيْرُهُمْ لِصَاحِبِهِ، وَخَيْرُ الْجِيرَانِ عِنْدَ اللهِ تَعَالَى خَيْرُهُمْ لِجَارِهِ‏.‏
Reference : Al-Adab Al-Mufrad 115
In-book reference : Book 6, Hadith 15
English translation : Book 6, Hadith 115