Name of first biggest lair who announced the false Prophet-hood?

Name of first biggest lair who announced the false Prophet-hood?

جھوٹی نبوت کا اعلان کرنے والے پہلے بڑے کھوتے کا نام؟
Explanation

Muslima  kazab      مسلمہ کذاب

He claim false Prophet-hood in the life of Muhammad