Prayer During Travel
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 59
وَ سَأَلَ سَمَاعَةُ بْنُ مِهْرَانَ أَبَا اَلْحَسَنِ اَلْأَوَّلَ عَلَيْهِ اَلسَّلاَمُ: عَنْ وَقْتِ صَلاَةِ اَللَّيْلِ فِي اَلسَّفَرِ فَقَالَ «مِنْ حِينِ تُصَلِّي اَلْعَتَمَةَ إِلَى أَنْ يَنْفَجِرَ اَلصُّبْحُ.
Sama'a ibn Mehran asked Abu al-Hasan the First عليه السلام about the timing of the night prayer during travel. Imam عليه السلام said: "From the time you perform the 'Atamah (Isha, the night prayer) until the break of dawn (Fajr)."
- Ṣaḥīḥ al-Faqīh