One among you used to spend one year in a dungeon dressed in worst clothes. (And at the end of this period) she threw dung at the dog which happened to pass that way and then she came out (of her 'Idda). Can't she (wait) even for four months and ten days? (Using translation from Muslim 1488c)
أَنَّ امْرَأَةً تُوُفِّيَ زَوْجُهَا فَخَافُوا عَلَى عَيْنِهَا فَأَتَوْا النَّبِيَّ ﷺ فَاسْتَأْذَنُوهُ فِي الْكُحْلِ فَقَالَ رَسُولُ اللهِ ﷺ قَدْ كَانَتْ إِحْدَاكُنَّ تَكُونُ فِي بَيْتِهَا فِي أَحْلَاسِهَا أَوْ فِي شَرِّ أَحْلَاسِهَا فِي بَيْتِهَا حَوْلًا فَإِذَا مَرَّ كَلْبٌ رَمَتْ بِبَعْرَةٍ فَخَرَجَتْ فَلَا أَرْبَعَةَ أَشْهُرٍ وَعَشْرًا