And what was narrated by al-Husayn ibn Sa‘id, from Fadalah, from Mu‘awiyah ibn ‘Ammar, who said:
I asked Him عليه السلام about a man who forgets the ‘qunut’ until he bows, should he perform the ‘qunut’? Imam عليه السلام said: "No."
Ali Akbar al-Ghaffari
Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 2, p. 171