She was picking lice from the head of the Messenger of Allah ﷺ while the wife of Uthman ibn Affan and the immigrant women were with him. They complained about their houses that they had been narrowed down to them and they were evicted from them. The Messenger of Allah ﷺ ordered that the houses of the Immigrants should be given to their wives. Thereafter Abdullah ibn Mas'ud died, and his wife inherited his house in Medina.  

أَنَّهَا كَانَتْ تَفْلِي رَأْسَ رَسُولِ اللَّهِ ﷺ وَعِنْدَهُ امْرَأَةُ عُثْمَانَ بْنِ عَفَّانَ وَنِسَاءٌ مِنَ الْمُهَاجِرَاتِ وَهُنَّ يَشْتَكِينَ مَنَازِلَهُنَّ أَنَّهَا تَضِيقُ عَلَيْهِنَّ وَيُخْرَجْنَ مِنْهَا فَأَمَرَ رَسُولُ اللَّهِ ﷺ أَنْ تُوَرَّثَ دُورَ الْمُهَاجِرِينَ النِّسَاءُ فَمَاتَ عَبْدُ اللَّهِ بْنُ مَسْعُودٍ فَوَرِثَتْهُ امْرَأَتُهُ دَارًا بِالْمَدِينَةِ  

[Machine] Zainab used to comb the hair of the Prophet and had with her Uthman bin Mazh'un's wife and some migrant women. They complained about their houses and how they were being restricted and felt confined in them. Zainab spoke and abandoned combing the hair of the Prophet and he said, "You are not speaking with your eyes, so speak and do your work." That day the Prophet ordered that the women of the migrants be given their share of inheritance. Abdullah died and his wife inherited his house in Medina.  

كَانَتْ زَيْنَبُ تَفْلِي رَأْسَ رَسُولِ اللهِ ﷺ وَعِنْدَهُ امْرَأَةُ عُثْمَانَ بْنِ مَظْعُونٍ وَنِسَاءٌ مِنَ الْمُهَاجِرَاتِ يَشْكُونَ مَنَازِلَهُنَّ وَأَنَّهُنَّ يَخْرُجْنَ مِنْهُ وَيُضَيَّقُ عَلَيْهِنَّ فِيهِ فَتَكَلَّمَتْ زَيْنَبُ وَتَرَكَتْ رَأْسَ رَسُولِ اللهِ ﷺ فَقَالَ رَسُولُ اللهِ ﷺ إِنَّكِ لَسْتِ تَكَلَّمِينَ بِعَيْنَيْكِ تَكَلَّمِي وَاعْمَلِي عَمَلَكِ فَأَمَرَ رَسُولُ اللهِ ﷺ يَوْمَئِذٍ أَنْ يُوَرَّثَ مِنَ الْمُهَاجِرِينَ النِّسَاءُ فَمَاتَ عَبْدُ اللهِ فَوَرِثَتْهُ امْرَأَتُهُ دَارًا بِالْمَدِينَةِ