question: What text was proof that Avicenna debated philosophy with some of the greatest scholars of the time ?
answer: the ` Ahd with Bahmanyar
turker_answer: The ` Ahd with Bahmanyar was proof that Avicenna debated philosophy with some of the greatest scholars of all time .
rule-based: Proof that Avicenna debated philosophy with some of the greatest scholars of the time was the ` Ahd with Bahmanyar .