(4) باب مَا جَاءَ فِي كَرَاهِيَةِ أَنْ يُسَافِرَ الرَّجُلُ وَحْدَهُ
Narrated Ibn 'Umar:
That the Messenger of Allah (ﷺ) said: "If the people knew what I know about being alone, then a rider would not journey at night." - meaning alone. (ES)
Reference (ES): Jami` at-Tirmidhi 1673 (ES)
In-book reference (ES): Book 23, Hadith 4 (ES)
English translation (ES): Vol. 3, Book 21, Hadith 1673 (ES)