Chapter on the Qiblah (Direction of Prayer)
Tahdhīb al-Aḥkām|Volume 2|Book 1|Chapter 5
عَنْهُ عَنْ مُحَمَّدِ بْنِ اَلْحُسَيْنِ عَنِ اَلْحَجَّالِ عَنْ ثَعْلَبَةَ بْنِ مَيْمُونٍ عَنْ مُعَاوِيَةَ بْنِ عَمَّارٍ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ: قُلْتُ اَلرَّجُلُ يَقُومُ فِي اَلصَّلاَةِ ثُمَّ يَنْظُرُ بَعْدَ مَا فَرَغَ فَيَرَى أَنَّهُ قَدِ اِنْحَرَفَ عَنِ اَلْقِبْلَةِ يَمِيناً وَ شِمَالاً قَالَ« قَدْ مَضَتْ صَلاَتُهُ وَ مَا بَيْنَ اَلْمَشْرِقِ وَ اَلْمَغْرِبِ قِبْلَةٌ»
Narrated from him from Muhammad ibn al-Husayn from al-Hajjal from Tha’labah ibn Maymun from Mu’awiyah ibn ‘Ammar from Abu Abdillah عليه السلام, who said:
I said (to Imam عليه السلام): "A man stands in prayer, and then after finishing he notices that he had deviated from the qiblah to the right or to the left." Imam عليه السلام said: "His prayer is valid. What lies between the East and the West is qiblah."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 52
- Ṣaḥīḥ al-Tahdhīb, p. 168