Sahih Muslim 827 e
Qaza'ah reported:
I heard Abu Sa'id al-Khudri (Allah be pleased with him) saying: I heard four things from Allah's Messenger (ﷺ) which impressed me and captivated me (and one out of these is this), that he forbade a woman to undertake journey extending over two days but with her husband, or with a Mahram; and he then narrated the rest of the hadith.
وَحَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا مُحَمَّدُ بْنُ جَعْفَرٍ، حَدَّثَنَا شُعْبَةُ، عَنْ عَبْدِ الْمَلِكِ بْنِ، عُمَيْرٍ قَالَ سَمِعْتُ قَزَعَةَ، قَالَ سَمِعْتُ أَبَا سَعِيدٍ الْخُدْرِيَّ، قَالَ سَمِعْتُ مِنْ، رَسُولِ اللَّهِ صلى الله عليه وسلم أَرْبَعًا فَأَعْجَبْنَنِي وَآنَقْنَنِي نَهَى أَنْ تُسَافِرَ الْمَرْأَةُ مَسِيرَةَ يَوْمَيْنِ إِلاَّ وَمَعَهَا زَوْجُهَا أَوْ ذُو مَحْرَمٍ ‏.‏ وَاقْتَصَّ بَاقِيَ الْحَدِيثِ ‏.‏