question #1 Sahih Muslim 1229e, Book 15, Hadith 196 : What are the conditions under which a person performing Hajj is not allowed to exit the state of Ihram?

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.