Read and understand the hadith

عن ابن عمر رضي الله عنهما قال: قال رسول الله صلى الله عليه وسلم: «مَا زَالَ يُوصِينِي جِبْرِيلُ بِالْجَارِ، حَتَّى ظَنَنْتُ أَنَّهُ سَيُوَرِّثُهُ».

The Prophet (may Allah's peace and blessings be upon him) informs that Jibrīl continued to instruct him that the neighbor, who lives next to one's house, be he a Muslim or a disbeliever, should be taken care of, not hurt, and treated kindly, his rights should be observed, and harm from them should be endured, to the extent that the Prophet (may Allah's peace and blessings be upon him) thought, due to the great attention given to the neighbor's rights and Jibrīl's repeated instruction about this, that there will come down revelation that gives his neighbor part of his inheritance after his death.

• The Hadīth points out the significance of the neighbor's rights and the duty to observe them.
• The repeated instruction regarding the neighbor's rights entails that we should honor him, treat him in a kind and benevolent manner, avert harm from him, visit him if he gets sick, congratulate him upon the occurrence of something pleasant, and give him solace upon affliction.
• The closer the neighbor's door is, the greater the emphasis upon his right.
• The Hadīth shows the perfection of the Shariah and its teachings that achieve the well-being of society, such as kindness to the neighbors and averting harm from them.

صحيح البخاري (8/ 10) (6014)، (8/ 10) (6015). صحيح مسلم (4/ 2025) (2624)، (4/ 2025) (2625). نزهة المتقين شرح رياض الصالحين (1/ 300). شرح رياض الصالحين، لابن عثيمين (3/ 175).