In his last will, al Imam al-Sadiq (A) told his companions

"In his last will, al Imam al-Sadiq (A) told his companions: Refrain from pride and self-glorification, since pride is God Almighty’s mantle, and one who contests with God regarding His cloak, God will shatter him and disgrace him on the Day of Resurrection."

IMAM KHOMEINI (R)