Must one repeat the 'Asr prayer if one doubts the first Tashahhud after the Taslim?

If a person's doubts become so frequent that they occur every day, even if only once, they should disregard them and not act upon what they doubt. No prostration of forgetfulness (sujud sahv) is required for them, because excessive doubt leads to a form of resistance and can result in additions to the prayer. As for someone who doubts having omitted the first sitting (tashahhud) in prayer, some scholars hold that no prostration of forgetfulness is required of them.