Hadith ~ Don't curse each other

In the Name of Allah, the Most Gracious, the Most Merciful.

Jabir reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "Do not curse each other and do not curse your children and do not curse your property lest it should coincide with a time from Allah in which gifts that are asked for are granted." [Muslim]

Riyad as-Salihin (The Meadows of the Righteous) of Iman Mohieddine Annawawi 631-676. Chapter 252, Hadith No 1497.