Abu Sa'id (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying: A woman should not set out on three (days') journey, but in the company of a Mahram.
Sahih Muslim · The Book of Pilgrimage
Sahih Muslim · The Book of Pilgrimage
Abu Sa'id (Allah be pleased with him) reported Allah's Messenger (ﷺ) as saying: A woman should not set out on three (days') journey, but in the company of a Mahram.