Abu Bakr is the first Muslim in his peers. He devoted to Islam sincerely. He saw a wisdom in the Prophet’s all words and behaviours and perceived his every indications as an order. Because of the fact that he accepted without hesitation all messages which the Prophet brought, he ascended the position of rihgteous (sıddîk). He made an effort in the expansion of Islam with his life and properties. Due to fact that he became the Prophet’s companionship (bosom friend) in his migration to Madina (Hijra), he ascended his position to the highest degree among the Muslims