Chapter on the Prayer Times (Mawaqit)
Tahdhīb al-Aḥkām|Volume 2|Book 1|Chapter 13
اَلْحَسَنُ بْنُ مُحَمَّدِ بْنِ سَمَاعَةَ عَنِ اِبْنِ مُسْكَانَ عَنْ سُلَيْمَانَ بْنِ خَالِدٍ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ:« اَلْعَصْرُ عَلَى ذِرَاعَيْنِ فَمَنْ تَرَكَهَا حَتَّى تَصِيرَ عَلَى سِتَّةِ أَقْدَامٍ فَذَلِكَ اَلْمُضَيِّعُ»
Al-Hasan ibn Muhammad ibn Sama'ah narrated from Ibn Muskan from Sulayman ibn Khalid:
Abu Abdillah عليه السلام, peace be upon him, said: "Asr is at two arm's lengths, and whoever delays it until it reaches six feet, then he is the one who has neglected it."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 274
- Ṣaḥīḥ al-Tahdhīb, p. 161