The Time for Night Prayer
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 66
وَقَالَ أَبُو جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ: «وَقْتُ صَلاَةِ اَللَّيْلِ مَا بَيْنَ نِصْفِ اَللَّيْلِ إِلَى آخِرِهِ.
Imam Muhammad ibn Ali Al-Baqir عليه السلام said: "The time for the night prayer (salat al-layl) is from midnight until its end."
- Ṣaḥīḥ al-Faqīh