However, he is better known for providing the most detailed description of the supernova now known as SN 1006, the brightest stellar event in recorded history, which he observed in the year 1006.

He engaged in a celebrated polemic against another physician, Ibn Butlan of Baghdad.

[4] In "The Book of Medical Competence" he mentions the traits of the virtuous physician as the one who possesses the following seven characteristics: 1.

He must be careful not to prescribe an untested potentially fatal medicine, or one that would cause abortion.

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