Chapter on the Qiblah (Direction of Prayer)
Tahdhīb al-Aḥkām|Volume 2|Book 1|Chapter 5
وَعَنْهُ عَنْ مُحَمَّدِ بْنِ يَحْيَى عَنْ مُحَمَّدِ بْنِ اَلْحُسَيْنِ عَنْ عُثْمَانَ بْنِ عِيسَى عَنْ سَمَاعَةَ قَالَ: سَأَلْتُهُ عَنِ اَلصَّلاَةِ بِاللَّيْلِ وَ اَلنَّهَارِ إِذَا لَمْ تُرَ اَلشَّمْسُ وَ لاَ اَلْقَمَرُ وَ لاَ اَلنُّجُومُ قَالَ« اِجْتَهِدْ رَأْيَكَ وَ تَعَمَّدِ اَلْقِبْلَةَ جُهْدَكَ»
Narrated Muhammad ibn Yahya from Muhammad ibn al-Husayn from Uthman ibn ‘Isa from Sama’ah, said:
I asked Him عليه السلام about praying during the night and the day when neither the sun, nor the moon, nor the stars can be seen. Imam عليه السلام said: "Exert your reasoning and aim toward the qiblah as best you can."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 49
- Ṣaḥīḥ al-Tahdhīb