IJazat

An ijazah is a license authorizing its holder to transmit a certain text or subject, which is issued by someone already possessing such authority. It is particularly associated with transmission of Islamic religious knowledge. The license usually implies that the student has acquired this knowledge from the issuer of the ijaza through first-hand oral instruction, although this requirement came to be relaxed over time. An ijaza providing a chain of authorized transmitters going back to the original author often accompanied texts of hadith, fiqh and tafsir; but also appeared in mystical, historical, and philological works, as well as literary collections. While the ijaza is primarily associated with Sunni Islam, the concept also appears in the hadith traditions of Twelver Shia.