Koranic marriage and inheritance law reformed existing Arab practice to protect the weak

Evidence

The Koranic legislation about marriage, divorce, and inheritance is similar: an attempt to reform and redirect existing Arab practice, rather than starting from a tabula rasa. Throughout, the emphasis is on protection of the weak against the depredations of the powerful; the latter are reminded that hellfire awaits the evildoer. — John V. Tolan, Saracens, 221