Chapter on Times of Prayer and Sign of Each of Its Times
Tahdhīb al-Aḥkām|Volume 2|Book 1|Chapter 4
وَ رَوَى مُحَمَّدُ بْنُ يَعْقُوبَ عَنْ عَلِيِّ بْنِ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنِ اِبْنِ أَبِي عُمَيْرٍ عَنْ حَمَّادٍ عَنِ اَلْحَلَبِيِّ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ:« وَقْتُ اَلْفَجْرِ حِينَ يَنْشَقُّ اَلْفَجْرُ إِلَى أَنْ يَتَجَلَّلَ اَلصُّبْحُ اَلسَّمَاءَ وَ لاَ يَنْبَغِي تَأْخِيرُ ذَلِكَ عَمْداً لَكِنَّهُ وَقْتٌ لِمَنْ شُغِلَ أَوْ نَسِيَ أَوْ نَامَ»
Narrated by Muhammad ibn Ya’qub from Ali ibn Ibrahim from his father from Ibn Abi ‘Umayr from Hammad from al-Halabi:
Abu Abdillah عليه السلام said: "The time of Fajr is from when the dawn splits until the morning light covers the sky. It is not appropriate to delay it deliberately, but it is a valid time for one who is preoccupied, forgets, or sleeps."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 40
- Ṣaḥīḥ al-Tahdhīb