Surah Al-Waqi'ah, ayah 25

56:25

لَا يَسۡمَعُونَ فِيهَا لَغۡوٗا وَلَا تَأۡثِيمًا ٢٥

Lā yasma'ūna fīhā laghwan walā ta'thīmā

They will not hear therein ill speech or commission of sin -