Fiqh-us-Sunnah Volume 2, Supererogatory Prayer, Fiqh 2.058.

Section : It is preferred to have a woman imam for women.

‘Aishah used to lead the women in salah and stand with the women in the middle of the first row. Umm Salamah would also do so. The Prophet sallallahu alehi wasallam appointed Waraqah to go and make the azhan for her while he instructed her to lead the women of her household in the obligatory prayers.