Timing of translations mattered in fixing the Latin canon of anti-Islamic polemic.

Evidence

His Dialog7, written after his conversion in 1106 and before his death in 1110, devote one entire dialogue to polemic against Islam which is careful to separate the factual element from the critical; it is precisely this that the Risalah failed to do. The material translated by Alfonso Buenhombre, which purports to be written by a converted Jewish rabbi, reached the Latin West only in the mid-fourteenth century, by which time the main canon had been established. — Norman Daniel, Islam and the West, 69