رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 989
The Book of Etiquette of Traveling
Prohibiting Woman from Traveling Alone
عَنْ أَبِي هُرَيْرَةَ رَضِيَ اللَّه عَنْهُ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّه عَلَيْهِ وَسَلَّمَ : لاَ يَحِلُّ لاِمْرَأَةٍ تُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ تُسَافِرُ مَسِيرَةَ يَوْمٍ وَلَيْلَةٍ إِلاَّ مَعَ ذِي مَحْرَمٍ عَلَيْهَا ((مُتَّفَقٌ عَلَيْهِ)) .
Abu Hurairah (May Allah be pleased with him) reported: The Messenger of Allah (ﷺ) said, "It is not permissible for a woman who believes in Allah and the Last Day to make a journey of one day and night unless she is accompanied by a Mahram (husband or any other relative to whom she is prohibited to marry)." [Al-Bukhari and Muslim].
Riyad as-Salihin, 989