Surah Al-Baqarah 2:226

لِّلَّذِينَ يُؤْلُونَ مِن نِّسَآئِهِمْ تَرَبُّصُ أَرْبَعَةِ أَشْهُرٍ ۖ فَإِن فَآءُو فَإِنَّ ٱللَّهَ غَفُورٌ رَّحِيمٌ

For those who swear not to have sexual relations with their wives is a waiting time of four months, but if they return [to normal relations] - then indeed, Allāh is Forgiving and Merciful.

Translation: Saheeh International

Tafsir

For those who forswear their women by swearing that they will not have sexual intercourse with them a wait of four months; if they revert back from the oath or repeal it and resume sexual relations God is Forgiving of the harm they caused their women by swearing Merciful to them.

Excerpt from Tafsir al-Jalalayn, commentary on 2:226, via Quran.com. The reader has the full commentary and 9 more tafsirs.