The Quran

240

وَالَّذينَ يُتَوَفَّونَ مِنكُم وَيَذَرونَ أَزواجًا وَصِيَّةً لِأَزواجِهِم مَتاعًا إِلَى الحَولِ غَيرَ إِخراجٍ ۚ فَإِن خَرَجنَ فَلا جُناحَ عَلَيكُم في ما فَعَلنَ في أَنفُسِهِنَّ مِن مَعروفٍ ۗ وَاللَّهُ عَزيزٌ حَكيمٌ

Muhammad Asad

AND IF any of you die and leave wives behind, they bequeath thereby to their widows [the right to] one year's maintenance without their being obliged to leave [the dead husband's home].¹ If, however, they leave [of their own accord], there shall be no sin in whatever they may do with themselves in a lawful manner.² And God is almighty, wise.

Lit., "[it is] a bequest to their wives [of] one year's maintenance without being dislodged". (As regards the justification of the rendering adopted by me, see Manor II, 446 ff.). The question of a widow's residence in her dead husband's house arises, of course, only in the event that it has not been bequeathed to her outright under the provisions stipulated in 4:12.
For instance, by remarrying - in which case they forgo their claim to additional maintenance during the remainder of the year. Regarding the phrase "there shall be no sin", see note 222 above.