Faith in the prophets and messengers is the fourth pillar of iman (faith). It means believing with certainty that Allah sent prophets and messengers to guide humanity to the truth.
Faith in the prophets and messengers is not just knowing their names. It means:
Believing in their truthfulness
Following their teachings
Emulating their character
May Allah make us among those who truly follow the guidance of His messengers and remain steadfast upon the truth.