الطور — At-Tur Ayat 23

يَتَنَازَعُوْنَ فِيْهَا كَأْسًا لَّا لَغْوٌ فِيْهَا وَلَا تَأْثِيْمٌ

Yatanāza‘ūna fīhā ka'sal lā lagwun fīhā wa lā ta'ṡīm(un).

"They will exchange with one another a cup [of wine] wherein [results] no ill speech or commission of sin."