It wasnarrated from Abu Hurairah that the Messenger of Allah (ﷺ)said:
"OAbu Hurairah, be cautious, and you will be the most devotedof peopleto Allah. Be content, and you will be the most grateful ofpeople toAllah. Love for people what you love for yourself, and youwill be a(true) believer. Be a good neighbor to your neighbors, andyou willbe a (true) Muslim. And laugh little, for laughing a lotdeadens theheart."
English reference: Vol. 5, Book 37, Hadith 4217
Arabic reference: Book 37, Hadith 4357