The Time for Night Prayer
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 66
وَ رَوَى أَبُو جَرِيرِ بْنُ إِدْرِيسَ عَنْ أَبِي اَلْحَسَنِ مُوسَى بْنِ جَعْفَرٍ عَلَيْهِمَا اَلسَّلاَمُ قَالَ قَالَ: «صَلِّ صَلاَةَ اَللَّيْلِ فِي اَلسَّفَرِ مِنْ أَوَّلِ اَللَّيْلِ فِي اَلْمَحْمِلِ وَ اَلْوَتْرَ وَ رَكْعَتَيِ اَلْفَجْرِ.
Abu Jarir ibn Idris narrated from Abu Al-Hasan Imam Musa ibn Jafar Al-Kadhim عليه السلام who said: "Perform the night prayer (salat al-layl) during travel at the beginning of the night, in the carriage, and also perform the Witr and the two units (rak'ahs) of the Fajr prayer."
- Ṣaḥīḥ al-Faqīh