Chapter on the Rulings on Forgetfulness (Ahkam al-Sahw)

Muhammad ibn al-Hasan said: “And this report does not contradict what we have presented earlier, that if someone speaks out of forgetfulness, two prostrations of forgetfulness (sajdatay al-sahw) are required, because there is nothing in this report stating that they are not required. It is possible that what was meant is that he should perform a lot of takbir, and then after completing the prayer, he should perform the two prostrations of forgetfulness, as we have explained.”