(126) بَابُ الضَّحِكِ
Abu Hurayra said, "The Prophet, may Allah bless him and grant himpeace, went out to a group of his Companions who were laughing and talking.He said, 'By the One in whose hand my soul is, if you knew what I knew,you would laugh little and weep much.' Then he left and the people wereweeping. Then Allah Almighty revealed to him, 'Muhammad! Why did you makeMy slaves despair?' The Prophet, may Allah bless him and grant him peace,said, "Give good news, guide people and draw near to one another.'"
Reference: Al-Adab Al-Mufrad 254
In-book reference: Book 12, Hadith 17
English translation: Book 12, Hadith 254