Sahih al-Bukhari 1087
صحيح البخاري#1087Sahihحَدَّثَنَا مُسَدَّدٌ، قَالَ حَدَّثَنَا يَحْيَى، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ ـ رضى الله عنهما ـ عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ تُسَافِرِ الْمَرْأَةُ ثَلاَثًا إِلاَّ مَعَ ذِي مَحْرَمٍ ". تَابَعَهُ أَحْمَدُ عَنِ ابْنِ الْمُبَارَكِ عَنْ عُبَيْدِ اللَّهِ عَنْ نَافِعٍ عَنِ ابْنِ عُمَرَ عَنِ النَّبِيِّ صلى الله عليه وسلم.
Narrated Ibn `Umar:The Prophet (ﷺ) said, "A woman should not travel for more than three days except with a Dhi-Mahram
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 18:8