大方廣圓覺修多羅了義經略疏 2.1031

2.1031

正明不疑。夫菩薩化現，權道難測，但依法門，莫疑其迹。不以順行即效虔誠，或覩逆行便生憍慢。故《智論》云：「於諸師尊如世尊想。若有能開釋深義、解散疑結，於我有益，則盡心敬之，不念餘惡。如弊囊盛寶，不得以囊惡故不取其寶。又如夜行險道，弊人執炬，不得以人惡故不取其照。菩薩亦復如是，於師得智慧光明，不計其惡。」然為師之難，為徒不易，勿因此誡，誤敵麁人。欲驗真虛，如前簡擇；已諳其道，如此遵承。又此藥治徒，師勿錯服，服之增病，無藥可治。以縛解縛，無有是處。

This directly clarifies being without doubt. For a bodhisattva's manifestations and skillful means are difficult to fathom; one should simply rely on the teaching and not doubt their outward traces. Do not emulate sincere devotion merely because of conforming conduct, nor let pride and arrogance arise upon seeing non-conforming conduct. Therefore, the *Mahāprajñāpāramitopadeśa* (*Dazhidu lun*) says: 'Regard your teachers and masters as you would the Bhagavat. If there is someone who can expound and explain the profound meaning and untie the knots of doubt, bringing benefit to oneself, then respect them with your whole heart and do not dwell on other flaws. Just as with a worn-out bag holding jewels, one must not refuse to take the jewels because the bag is bad. And just as when walking a dangerous road at night, an unseemly person holds a torch, one must not refuse to take the light because the person is bad. A bodhisattva is also like this: obtaining the light of wisdom from a teacher, they do not take their flaws into account.' However, being a teacher is difficult, and being a disciple is not easy; do not take this admonition as a pretext to wrongly contend with coarse individuals. If you wish to test truth and falsity, discriminate as explained before; having already understood their path, comply and honor them in this way. Furthermore, this medicine treats disciples; teachers must not mistakenly take it. Taking it increases sickness, and there is no medicine that can cure it. Using fetters to untie fetters is impossible.