The best of companions in the sight of Allah, the Almighty, is the best of them to his companion, and the best of neighbors in the sight of Allah, the Almighty, is the best of them to his neighbor
Authentic hadithعن عبد الله بن عمرو رضي الله عنهما قال: قال رسول الله صلى الله عليه وسلم : «خيرُ الأصحابِ عند الله تعالى خيرُهم لصاحبه، وخيرُ الجيرانِ عند الله تعالى خيرُهم لجاره».
‘Abdullāh ibn ‘Amr (may Allah be pleased with him) reported that the Messenger of Allah (may Allah's peace and blessings be upon him) said: "The best of companions in the sight of Allah, the Almighty, is the best of them to his companion, and the best of neighbors in the sight of Allah, the Almighty, is the best of them to his neighbor."
Explanation
The best companion in Allah's sight in terms of rank and reward is the one who is the most beneficial to his companion. Similarly, the best neighbor in Allah's sight is the one who is the most beneficial to his neighbor.
Source · Narrated by At-Termedhy - Narrated by Ahmad - Ad-Daarimi
From the Hadith Encyclopedia (hadeethenc.com).