Sura 66 At-Tahrim (The Prohibition), ayah 2
-
قَدْ فَرَضَ اللَّهُ لَكُمْ تَحِلَّةَ أَيْمَانِكُمْ ۚ وَاللَّهُ مَوْلَاكُمْ ۖ وَهُوَ الْعَلِيمُ الْحَكِيمُ
Allah has already ordained for you (Muslims) the dissolution of your oaths. And Allah is your protector, and He is the Knowing, the Wise.
66:2
Translation: Saheeh International