The only prophet whose name has become obligatory by Allah Almighy to be recited in the Tashahhud (the testimony of faith) of prayers during the day and night along with his name, is the name of the great Prophet of Islam, Prophet Muhammad (PBUH). Otherwise, your prayer is void. This is an issue of great importance that from among 124,000 Prophets, the only Prophet whose name is obligatory to be testified along with the name of Almighty Allah, is the Messenger of Islam.
source : erfan.ir