From him, from al-Husayn from Aban from al-Fudayl ibn Yasar who said:
I said to Abu Abdillah عليه السلام, peace be upon him: “May I lead the obligatory prayer with Umm Ali?” Imam عليه السلام said: “Yes, she should be on your right side, and her prostration should be aligned with your feet.”
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 3, p. 293