Abstract
Science of Jarh wa Ta'dῑl is a means of preserving the text and authenticity of a hadith. This knowledge is unique to Muslims. Through it, the circumstances of millions of narrators of hadith have been recorded. Thanks to this knowledge, It is a matter of pride for Muslims today that the collection of hadith available to the Umma of Muhammad meets the standard of research and criticism. The former ummas have not been able to do this in a good way due to which the teachings of their Prophets are almost non-existent and what exists is found in a distorted form. With the passage of time, this knowledge continued to innovate and this knowledge continued to develop further. Many well-known narrators have passed away in this knowledge. Shaikh Nasir ud Dῑin Albᾱni is also one of those muhadditheen who has dedicated his life to the service of hadith. In this article, his principles regarding Jarh wa Ta'dῑl collected and discussed, but he compiled a set of principles, which he named Tamam al-Manna. He mentions some other principle in his various compilations, which will be mentioned here together.