Al-Husayn ibn Sa‘id from Fadhala and Hammad ibn Isa from Mu‘awiyah ibn Wahb who said:
I asked Abu Abdillah عليه السلام about the ‘tathwib’ (‘Al-salatu khayrun min al-nawm’) that occurs between the Adhan and the Iqamah. Imam عليه السلام said: “We do not recognize it.”
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 67