[Machine] A woman's husband died and she complained about her eye. So they went to the Prophet ﷺ and asked for permission to use kohl, mentioning that they were concerned about her eye. The Prophet ﷺ said, "One of you stayed in her house for a period of time, during which she threw away a speck of dust. Shouldn't she observe a period of four months and ten [days]?"
أَنَّ امْرَأَةً تُوُفِّيَ عَنْهَا زَوْجُهَا فَاشْتَكَتْ عَيْنَهَا فَأَتَوُا النَّبِيَّ ﷺ فَاسْتَأْذَنُوهُ فِي الْكُحْلِ وَذَكَرُوا أَنَّهُمْ يَخْشَوْنَ عَلَى عَيْنِهَا فَقَالَ النَّبِيُّ ﷺ «قَدْ كَانَتْ إِحْدَاكُنَّ تَمْكُثُ فِي بَيْتِهَا حَوْلًا فَإِذَا كَانَ حَوْلًا رَمَتْ بِبَعْرَةٍ أَفَلَا أَرْبَعَةَ أَشْهُرٍ وَعَشْرًا؟»