Ali, A. B. H. “Muhammad’s Heirs:: The Rise of Muslim Scholarly Communities, 622-950 By Jonathan E. Brockopp (Cambridge: Cambridge University Press, 2017. 248 pages.)”. American Journal of Islam and Society, vol. 35, no. 2, Apr. 2018, pp. 91-94, doi:10.35632/ajis.v35i2.835.