The Prophet (ﷺ) said, "By Allah, he does not believe! By Allah, he does not believe! By Allah, he does not believe!" It was said, "Who is that, O Allah's Messenger (ﷺ)?" He said, "That person whose neighbor does not feel safe from his evil."
Sahih al-Bukhari Book 78, Hadith 47
← Previous Hadith Allah' Apostle said, Gabriel kept on recommending me about treating the neighbors in a kind and polite manner, so much so that I thought that he would order (me) to make them (my) heirs."

Sahih al-Bukhari Book 78, Hadith 46 Next Hadith → The Prophet (ﷺ) used to say, "O Muslim ladies! A neighbouress should not look down upon the present of her neighbouress even it were the hooves of a sheep."

Sahih al-Bukhari Book 78, Hadith 48