 During the caliphate of Hisham from 724, the prohibitions were sidestepped with reinterpretations (e.g.tying the "kharaj" land tax to the land rather than the owner, so that lands that were at any point subject to the "kharaj" remained under "kharaj" even if currently owned by a Muslim).As a result, resentful Berbers grew receptive to radical Kharijite activists from the east (notably of Sufrite and later Ibadite persuasion) which had begun arriving in the Maghreb in the 720s.