If I forget how many prostrations of forgetfulness (sujud al-sahw) I have performed, what should I do?

If a worshiper forgets whether he performed one prostration or two prostrations for forgetfulness (sujud al-sahw), he should act based on what he predominantly believes. If he does not have a predominant belief, he should build upon certainty, which is the lesser amount. Thus, he considers it one prostration and then performs the second prostration, and then immediately concludes his prayer with the salam. Prostrations of forgetfulness are not prescribed for prostrations of forgetfulness, because that would lead to an endless sequence.