Yahya related to me from Malik from Nafi that Abdullah ibn Umar used to say, "A woman in ihram should not comb her hair when she leaves ihram until she has cut some of the tresses of her hair, and if she has an animal for sacrifice with her she should not cut off any of her hair until the animal has been killed."
أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ كَانَ يَقُولُ الْمَرْأَةُ الْمُحْرِمَةُ إِذَا حَلَّتْ لَمْ تَمْتَشِطْ حَتَّى تَأْخُذَ مِنْ قُرُونِ رَأْسِهَا وَإِنْ كَانَ لَهَا هَدْىٌ لَمْ تَأْخُذْ مِنْ شَعْرِهَا شَيْئًا حَتَّى تَنْحَرَ هَدْيَهَا