Thus there was no need to prove the beliefs of a Muslim rationally; such a procedure was an innovation in Islam. The well known statement ‘He who is involved in kalam will never receive salvation,for never does a man take to kalam unless his heart was lacking in faith’ is attributed to Ahmad ibn Hanbal. Certain Hanbalis simply considered the discipline of kalam as sinful and wrote many epistles discouraging Muslims from expressing an interest in it