At Tahrim Ayah 2
قَدْ فَرَضَ ٱللَّهُ لَكُمْ تَحِلَّةَ أَيْمَـٰنِكُمْۚ وَٱللَّهُ مَوْلَـٰكُمْۖ وَهُوَ ٱلْعَلِيمُ ٱلْحَكِيمُ ٢
Allah has already ordained for you ?believers? the way to absolve yourselves from your oaths. For Allah is your Guardian. And He is the All-Knowing, All-Wise.