Renewer. Person who initiates tajdid (renewal). According to hadith, a mujaddid is to come at the beginning of each century to renew the faith and correct the practice of Muslims. Many puritanical reformers and revivalists have been identified by their followers as mujaddid because they have called Muslims back to the Islam of the early community as they interpret it, rejecting as innovations any later added practices or customs. Ahmad Sirhindi (d. 1624) of India, for example, who revived the Naqshbandi Sufi tariqah, was widely known as the mujaddid of the second thousand years of Islamic history.