Musnad Ahmad

Mu’adhah (may Allah have mercy on her) says that a woman asked Hazrat Aisha (may Allah be pleased with her), “Does a menstruating woman have to make up the missed prayers?” She replied, “Have you become a Kharijite? In the time of the Prophet (peace and blessings be upon him), when our ‘days’ would come, we neither made up the prayers nor were we ordered to make them up.”