Sunan of Abu Dawood Book 13, Hadith 2298

حَدَّثَنَا أَحْمَدُ بْنُ مُحَمَّدٍ الْمَرْوَزِيُّ، حَدَّثَنِي عَلِيُّ بْنُ الْحُسَيْنِ بْنِ وَاقِدٍ، عَنْ أَبِيهِ، عَنْ يَزِيدَ النَّحْوِيِّ، عَنْ عِكْرِمَةَ، عَنِ ابْنِ عَبَّاسٍ، ‏{‏ وَالَّذِينَ يُتَوَفَّوْنَ مِنْكُمْ وَيَذَرُونَ أَزْوَاجًا وَصِيَّةً لأَزْوَاجِهِمْ مَتَاعًا إِلَى الْحَوْلِ غَيْرَ إِخْرَاجٍ ‏}‏ فَنُسِخَ ذَلِكَ بِآيَةِ الْمِيرَاثِ بِمَا فُرِضَ لَهُنَّ مِنَ الرُّبُعِ وَالثُّمُنِ وَنُسِخَ أَجَلُ الْحَوْلِ بِأَنْ جُعِلَ أَجَلُهَا أَرْبَعَةَ أَشْهُرٍ وَعَشْرًا ‏.‏

The Qur'anic verse "Those of you who die and leave widows should bequeath for their widows a year's maintenance and residence was abrogated by the verse containing the laws of succession, as one-fourth or one-eighth share was prescribed for them (i.e., the widows). The waiting period for one year was also repealed as a period of four months ten days was prescribed for them