Does the prayer become void if the Imam makes a mistake in recitation or movements, and a person praying behind him corrects his mistake?

If the follower (ma'mum) makes a mistake in correcting the Imam (fath), their prayer is not invalidated. This is considered an unintentional verbal addition. Scholars differ regarding the prostration of forgetfulness (sujud al-sahw) for such a mistake. According to the view that it is prescribed, the Imam bears it on behalf of the follower.