"I heard my mother, Um Salama saying that a woman came to Messenger of Allah ﷺ and said, "O Messenger of Allah ﷺ! The husband of my daughter has died and she is suffering from an eye disease, can she apply kohl to her eye?" Messenger of Allah ﷺ replied, "No," twice or thrice. (Every time she repeated her question) he said, "No." Then Messenger of Allah ﷺ added, "It is just a matter of four months and ten days. In the Pre-Islamic Period of ignorance a widow among you should throw a globe of dung when one year has elapsed." (Using translation from Bukhārī 5336)
وَسَمِعْتُ أُمِّي أُمَّ سَلَمَةَ تَقُولُ جَاءَتِ امْرَأَةٌ إِلَى رَسُولِ اللَّهِ ﷺ فَقَالَتْ يَا رَسُولَ اللَّهِ إِنَّ ابْنَتِي تُوُفِّيَ عَنْهَا زَوْجُهَا وَقَدِ اشْتَكَتْ عَيْنَاهَا فَنُكَحِّلُهَا؟ فَقَالَ رَسُولُ اللَّهِ ﷺ «لَا» مَرَّتَيْنِ أَوْ ثَلَاثًا كُلُّ ذَلِكَ يَقُولُ «لَا إِنَّمَا هِيَ أَرْبَعَةُ أَشْهُرٍ وَعَشْرٌ وَقَدْ كَانَتْ إِحْدَاكُنَّ فِي الْجَاهِلِيَّةِ تَرْمِي بِالْبَعْرَةِ عَلَى رَأْسِ الْحَوْلِ