Opening the verse
وَٱلَّذِينَ يُتَوَفَّوْنَ مِنكُمْ وَيَذَرُونَ أَزْوَٰجًا وَصِيَّةً لِّأَزْوَٰجِهِم مَّتَـٰعًا إِلَى ٱلْحَوْلِ غَيْرَ إِخْرَاجٍ ۚ فَإِنْ خَرَجْنَ فَلَا جُنَاحَ عَلَيْكُمْ فِى مَا فَعَلْنَ فِىٓ أَنفُسِهِنَّ مِن مَّعْرُوفٍ ۗ وَٱللَّهُ عَزِيزٌ حَكِيمٌ
And those who are taken in death among you and leave wives behind - for their wives is a bequest: maintenance for one year without turning [them] out. But if they leave [of their own accord], then there is no blame upon you for what they do with themselves in an acceptable way. And Allāh is Exalted in Might and Wise.
Narrated Ibn Az-Zubair:I said to `Uthman bin `Affan (while he was collecting the Qur'an) regarding the Verse:-- "Those of you who die and leave wives ..." (2.240) "This Verse was abrogated by another Verse. So why should you write it? (Or leave it in the Qur'an)?" `Uthman said. "O son of my brother! I will not shift anything of it from its place
Narrated Mujahi:(regarding the Verse):-- "Those of you who die and leave wives behind. They - (their wives) -- shall wait (as regards their marriage ) for four months and ten days)." (2.234) The widow, according to this Verse, was to spend this period of waiting with her husband's family, so Allah revealed: "Those of you who die and leave wives (i.e. widows) should bequeath for their wives, a year's maintenance and residence without turning them out, but if they leave (their residence), there is no blame on you for what they do with themselves provided it is honorable.' (i.e. lawful marriage) (2.240). So Allah entitled the widow to be bequeathed extra maintenance for seven months and twenty…
Narrated Mujahid:(regarding the Verse): 'If any of you dies and leaves wives behind,' That was the period of the 'Iddah which the widow was obliged to spend in the house of the late husband. Then Allah revealed: And those of you who die and leave wives should bequeath for their wives a year's maintenance and residence without turning them out, but if they leave, there is no blame on you for what they do of themselves, provided it is honorable (i.e. lawful marriage) (2.240) Mujahid said: Allah has ordered that a widow has the right to stay for seven months and twenty days with her husband's relatives through her husband's will and testament so that she will complete the period of one year…