Musannaf Ibn Abi Shayba 28:690

Waki’ narrated to us, from Shu’bah, from al-‘Awwam ibn Muzahim, from Khalid ibn Sayhan, who said: I witnessed with Abu Musa four or five women, among them was Mujza’ah ibn Thawr. They used to provide water and treat the wounded, so he allotted a share for them.