Martí composed anti-Muslim apologetics for both conversion and quarantine of Christians

Evidence

Martí at times refers to the Koran, either to use it in support of Christian doctrine or to refute it where it opposes Christian doctrine. The work could thus be used either to instruct a convert from Islam in the basic tenets of Christianity or to educate those who are already Christians and inoculate them against Muslim anti-Christian arguments. If Martí composed the work in Tunis, he may well have done so with both these goals in mind. If we are to believe Ramon Llull, Martí wrote an Arabic version of the Explanatio, which he presented to the “King of Tunis” in a failed attempt to convert him to Christianity. — John V. Tolan, Saracens, 1208