Imam Malik's Muwatta, Chapter: Hajj

Yahya related to me from Malik that he had heard the people of knowledge say, "Women do not have to raise their voices when they are doing talbiya, and a woman should only speak loudly enough to hear herself." Malik said, "Some one who is in ihram should not raise his voice when doing talbiya if he is in a mosque where there are groups of people. He should only speak loudly enough for himself and those who are near him to be able to hear, except in the Masjid alHaram and the mosque at Mina, where he should raise his voice." Malik said, "I have heard some of the people of knowledge recommending (people to do) talbiya at the end of every prayer and at every rise on the route."