Explanation of the hadith
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.
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 hadithNarrated by At-Termedhy - Narrated by Ahmad - Ad-DaarimiHadeethEnc #3709
عن 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».
English translation
‘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."
Praiseworthy Morals