The study of sources of religious knowledge in Al-Kafi

Seqat-ol-Eslam Koleini in al-kafi has mentioned Reason, Instinct, Quran and Sunnah as Religious Knowledge Sourses and has emphasis on a relationship between them. Seqat-ol-Eslam Koleini prefers the sources of knowledge that occurs through conflict between the sources and guides to the right path, so he accounts instinct as prelude to all affairs and reason as a master key for human to find the right path is efficient in all sources. He believes that wise human because of instinct is towards God and benefits the sources of Quran and Sunnah (tradition).