Içe de Gebir (Arabic: عيسى بن جابر الشقوبي; Īsā ibn Jābir Al-Sheqoobi; sometimes also found as Isa, Iça, Içe, Yça, Yza, and Ysa, and last name can be also spelled as Gebir, Jabir, or Yábir[1]) or Içe de Gebir, was a prominent Faqīh or Muslim legal scholar in the Catholic Kingdom of Castille in the fifteen century CE.
He is also the author of Sunni Breviary, a thirteen volume collection on Islamic law and daily Muslim practices, based on Prophet Muhammad's teachings.
John preferred gentle persuasive methods, instead of using force, but achieving this required a good understanding of the Quran.
Translations in fifteenth century CE, were not common in Christian Europe, mainly because Muslims did not permit the transfer of the physical copy of the Quran because of concerns that it would not be given the respect they thought it deserved.
In the introduction of Sunni Breviary, Isa writes:[4]... because the Moors of Castile, under such great oppression, subjected to the exaction of tribute, forced labor and exhaustion, have declined in their wealth and have lost their schools of Arabic, in order to put right all these things which are wrong, many of my friends, and especially the honorable body which is charged with assessing our collective taxes have pressed me hard, and have asked me to draw up and to copy out in Romance such an outstanding written work concerning our law and our sunna: what every good Muslim should know and have as normal practice...