(4) باب فِي كَمْ يَقْصُرُ الصَّلاَةَ
Narrated Ibn `Umar:
The Prophet (ﷺ) said, "A woman should not travel for more than three days except with a Dhi-Mahram (i.e. a male with whom she cannot marry at all, e.g. her brother, father, grandfather, etc.) or her own husband.)"
Reference: Sahih al-Bukhari 1086
In-book reference: Book 18, Hadith 7
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 2, Book 20, Hadith 192