大般涅槃經集解 42.42

42.42

案僧亮曰：示王醫所也。所以須具說者，六師皆言其師一切智，故須本末述之。僧宗曰：第三明此師說法藥，故罪可治也。寶亮曰：第五耆婆為王說二諦除罪之法藥也。智秀曰：第二句舉善，今列法藥也。

Sengliang states: He shows the king the physician's location. Why it must be fully explained is that the six teachers all claim their teachers are omniscient; therefore, it must be narrated from beginning to end.
Sengzong says: Third, it clarifies that because this master expounds the medicine of the Dharma, the sins can be treated.
Baoliang says: Fifth, Jīvaka explains to the king the Dharma medicine of the two truths that eliminates sins.
Zhixiu says: The second phrase brought up the good, and now lists the Dharma medicine.