Surah Al-Mujadilah (The Pleading Woman), Verse 2

اَلَّذِیْنَ یُظٰهِرُوْنَ مِنْكُمْ مِّنْ نِّسَآىِٕهِمْ مَّا هُنَّ اُمَّهٰتِهِمْ اِنْ اُمَّهٰتُهُمْ اِلَّا الّٰٓـِٔیْ وَلَدْنَهُمْ وَاِنَّهُمْ لَیَقُوْلُوْنَ مُنْكَرًا مِّنَ الْقَوْلِ وَزُوْرًا وَاِنَّ اللّٰهَ لَعَفُوٌّ غَفُوْرٌ ۟

Allazeena yuzaahiroona minkum min nisaaa'ihim maa hunnaa ummahaatihim in ummahaatuhum illal laaa'ee waladnahum; wa innaahum la yaqooloona munkaram minal qawli wa zooraa; wa innal laaha la'afuwwun ghafoor

“If any men among you divorce their wives by Zihar (calling them mothers), they cannot be their mothers: None can be their mothers except those who gave them birth. And in fact they use words (both) iniquitous and false: but truly Allah is one that blots out (sins), and forgives (again and again).”

Quran 58:2 (Yusuf Ali Translation)