(15) باب مَا جَاءَ فِي كَرَاهِيَةِ أَنْ تُسَافِرَ الْمَرْأَةُ وَحْدَهَا بِغَيْرِ مَحْرَمٍ
Abu Hurairah narrated that The Messenger of Allah said:
"A woman is not to travel the distance of a day and a night unless she is accompanied by someone who is a Mahram." (ID)
Reference (ID): Jami` at-Tirmidhi 1170 (ID)
In-book reference (ID): Book 12, Hadith 25 (ID)
English translation (ID): Vol. 1, Book 7, Hadith 1170 (ID)