Chapter on the Rulings of Congregational Prayer (the Minimum Number for Congregational Prayer, the Description of the Imam, Who Is to Be Followed and Who Is Not to Be Followed, Recitation Behind Both of Them, the Rulings of Those Led in Prayer, and Other Such Rulings Related to It)

Tahdhīb al-Aḥkām|Volume 3|Book 1|Chapter 3

Chapter on the Rulings of Congregational Prayer (the Minimum Number for Congregational Prayer, the Description of the Imam, Who Is to Be Followed and Who Is Not to Be Followed, Recitation Behind Both of Them, the Rulings of Those Led in Prayer, and Other Such Rulings Related to It)

رَوَى أَحْمَدُ بْنُ مُحَمَّدِ بْنِ عِيسَى عَنْ مُحَمَّدِ بْنِ أَبِي عُمَيْرٍ عَنْ حَمَّادِ بْنِ عُثْمَانَ عَنْ عُبَيْدِ اَللَّهِ بْنِ عَلِيٍّ اَلْحَلَبِيِّ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ:« لاَ أَرَى بِالْوُقُوفِ بَيْنَ اَلْأَسَاطِينِ بَأْساً»

Ahmad ibn Muhammad ibn Isa narrated from Muhammad ibn Abi Umayr from Hammad ibn Uthman from Ubaydullah ibn Ali al-Halabi from Abu Abdillah , peace be upon him, who said: Imam al-Sadiq said: “I do not see any harm in standing between the columns (for prayer).”

Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 3, p. 57
Shaykh Baqir al-Behbudi
Ṣaḥīḥ al-Tahdhīb

Chapter on the Rulings of Congregational Prayer (the Minimum Number for Congregational Prayer, the Description of the Imam, Who Is to Be Followed and Who Is Not to Be Followed, Recitation Behind Both of Them, the Rulings of Those Led in Prayer, and Other Such Rulings Related to It)

Volume 3, Book 1, Chapter 3

Chapter on the Rulings of Congregational Prayer (the Minimum Number for Congregational Prayer, the Description of the Imam, Who Is to Be Followed and Who Is Not to Be Followed, Recitation Behind Both of Them, the Rulings of Those Led in Prayer, and Other Such Rulings Related to It)

Hadith #92