Hafsa (Allah be pleased with her) said that Allah's Apostle (ﷺ) commanded his wives that they should put off Ihram during the year of Hajj (at-ul-Wada'). whereupon she (Hafsa) said:
What hinders you that you have not put off Ihram? Thereupon he said: I have stuck my hair and driven my sacrificial animal along with men and it is not permissible to put off Ihram (under this condition until I have sacrificed the animal.
Reference: Sahih Muslim 1229 e In-book : Book 15, Hadith 196 USC-MSA web (English) : Book 7, Hadith 2837 (deprecated)
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