Sahih Muslim 3261
صحيح مسلم#3261SahihAbu Sa'id Khudri (Allah be pleased with him) reported Allah's Apostle (ﷺ) as saying:A woman should not set out on a journey extending beyond three nights but with a Mahram
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 15:468