Prayer: Inadvertently Reciting Surat al-Hamd and the Other Surah
Practical Laws of Islam as per the teachings of Ayatullah Sistani
Ruling 1444
If a follower inadvertently recites Sūrat al-Ḥamd and the other surah, or he thinks that the voice he is hearing is not the voice of the imam and recites Sūrat al-Ḥamd and the other surah, and he later realises that it was the voice of the imam, his prayer is valid.