Is it permissible for a latecomer (masbuq) to perform the prostration of forgetfulness (sujud al-sahw) if its conditions are met after he has completed his prayer individually?

If the worshipper (ma'mum) stands up to make up what he missed after the Imam's salam, and this action leads to a reason for the prostration of forgetfulness (sujud al-sahw), he should perform it. This is because, at that point, he is considered to be in the status of an individual worshipper, and having become an individual worshipper, the Imam no longer bears responsibility for his forgetfulness.