مُسْنَدُ أَحْمَدَ
Musnad Ahmad 3207
Musnad of 'Abdullah bin al-'Abbas bin 'Abdul-Muttalib from the Prophet
It was narrated from Ibn 'Abbas that The Prophet (ﷺ) said: "No woman should travel unless she has a mahram with her." A man came to the Prophet (ﷺ) and said: I have enlisted in such and such a campaign and my wife is going for Hajj. He said: "Go back and do Hajj with her."
Musnad Ahmad 3231Its isnad is saheeh, al-Bukhari (1862) and Muslim (1341)]