Ahmad ibn Muhammad from Ahmad ibn Umar Al-Halabi from Aban ibn Taghlib, who said:
I entered upon Abu Abdillah عليه السلام, while He عليه السلام was praying, and I counted for Him عليه السلام in the bowing and the prostration sixty tasbihat.
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 323