Sunan an-Nasa'i #3538 · The Book of Divorce

Sunan an-Nasa'iZainab bint Abi Salamah narrated that her mother Umm Salamah said
Sunan an-Nasa'i · Book 27 · The Book of Divorce
Sunan an-Nasa'i · كتاب 27 · كتاب الطلاق
"A woman from the Quraish came and said: 'O Messenger of Allah, my daughter's eyes are inflamed; shall I apply kohl to her?' (The daughter's) husband had died so (the Prophet) said: 'Not until four months and ten days (have passed).' Then she said: 'I fear for her sight.' He said: 'No, not until four months and ten days (have passed). During the Jahiliyyah one of you would mourn for her husband for a year, then when one year had passed she would throw a piece of dung
أَخْبَرَنَا الرَّبِيعُ بْنُ سُلَيْمَانَ، قَالَ حَدَّثَنَا شُعَيْبُ بْنُ اللَّيْثِ، عَنْ أَبِيهِ، قَالَ حَدَّثَنَا أَيُّوبُ، - وَهُوَ ابْنُ مُوسَى - قَالَ حُمَيْدٌ وَحَدَّثَتْنِي زَيْنَبُ بِنْتُ أَبِي سَلَمَةَ، عَنْ أُمِّهَا أُمِّ سَلَمَةَ، قَالَتْ جَاءَتِ امْرَأَةٌ مِنْ قُرَيْشٍ فَقَالَتْ يَا رَسُولَ اللَّهِ إِنَّ ابْنَتِي رَمِدَتْ أَفَأَكْحُلُهَا ‏.‏ وَكَانَتْ مُتَوَفًّى عَنْهَا ‏.‏ فَقَالَ ‏
"‏ أَلاَ أَرْبَعَةَ أَشْهُرٍ وَعَشْرًا ‏"‏ ‏.‏ ثُمَّ قَالَتْ إِنِّي أَخَافُ عَلَى بَصَرِهَا فَقَالَ ‏"‏ لاَ إِلاَّ أَرْبَعَةَ أَشْهُرٍ وَعَشْرًا قَدْ كَانَتْ إِحْدَاكُنَّ فِي الْجَاهِلِيَّةِ تَحِدُّ عَلَى زَوْجِهَا سَنَةً ثُمَّ تَرْمِي عَلَى رَأْسِ السَّنَةِ بِالْبَعْرَةِ ‏"‏ ‏.‏
Reference : Sunan an-Nasa'i 3538In-book reference : Book 27, Hadith 152