البَقَرَةِ · 226

لِّلَّذِينَ يُؤۡلُونَ مِن نِّسَآئِهِمۡ تَرَبُّصُ أَرۡبَعَةِ أَشۡهُرࣲۖ فَإِن فَآءُو فَإِنَّ ٱللَّهَ غَفُورࣱ رَّحِيمࣱ‏

For those who take an oath for abstention from their wives, a waiting for four months is ordained; if then they return, Allah is Oft-forgiving, Most Merciful