Quran Al-Baqarah 2:225
لَّا يُؤَاخِذُكُمُ ٱللَّهُ بِٱللَّغۡوِ فِيٓ أَيۡمَٰنِكُمۡ وَلَٰكِن يُؤَاخِذُكُم بِمَا كَسَبَتۡ قُلُوبُكُمۡۗ وَٱللَّهُ غَفُورٌ حَلِيمٞ ٢٢٥
Translation
Allāh does not impose blame upon you for what is unintentional in your oaths, but He imposes blame upon you for what your hearts have earned. And Allāh is Forgiving and Forbearing.