sentences:  Al-Risala (Al-Shafi‘i)
  
  The Risāla by ash-Shafi'i (d. 820), full title "Kitab ar-Risāla fī Uṣūl al-Fiqh" ( "book of the communication on the foundations of comprehension (i.e.Islamic jurisprudence)") is a seminal text on the principles of Islamic jurisprudence
  
  The word "risāla" in Arabic means a "message" or "letter, communication".