Al-Baqarah 2:240

وَٱلَّذِينَ يُتَوَفَّوْنَ مِنكُمْ وَيَذَرُونَ أَزْوَٰجًۭا وَصِيَّةًۭ لِّأَزْوَٰجِهِم مَّتَٰعًا إِلَى ٱلْحَوْلِ غَيْرَ إِخْرَاجٍۢ ۚ فَإِنْ خَرَجْنَ فَلَا جُنَاحَ عَلَيْكُمْ فِى مَا فَعَلْنَ فِىٓ أَنفُسِهِنَّ مِن مَّعْرُوفٍۢ ۗ وَٱللَّهُ عَزِيزٌ حَكِيمٌۭ

Those of you who die and leave widows should bequeath for their widows a year's maintenance and residence; but if they leave (The residence), there is no blame on you for what they do with themselves, provided it is reasonable. And Allah is Exalted in Power, Wise.