لَا تُكْثِرُوا الضَّحِكَ، فَإِنَّ كَثْرَةَ الضَّحِكِ تُمِيتُ الْقَلْبَ
Transliteration
La tukthiru-d-dahik, fa-inna kathrata-d-dahiki tumitu-l-qalb.
Translation
Do not laugh excessively — too much laughter deadens the heart.
Narrated by Abu Hurayrah·Jami' at-Tirmidhi 2305 (hasan)
