菩薩戒義疏 2.34

2.34

第十八、無解作師戒。無解強授，有誤人之失故制。出家二眾同犯，大小乘俱制。三眾及在家無師範義，未制。聲聞師德在七法，誦受戒法所制。菩薩師法，必須十歲五法，如初釋。序事三重：一應誦戒，解義亦是所制。日日六時，晝夜各三。一云誦未通利必須六時，已通利未必恒爾；二云恒應六時。二、明不誦不解不應作師。一乖己心則自欺，誤前人則欺他也。

Eighteenth: The precept against acting as a teacher without understanding. It is instituted because forcing instruction without understanding carries the error of misleading others. The two ordained assemblies share in the transgression; it is instituted commonly for both the Mahāyāna and the Hīnayāna. The [other] three assemblies and laypersons do not have the role of being a model teacher, so it is not yet instituted [for them]. The teacher's virtue for a śrāvaka lies in the seven dharmas, instituted for reciting and receiving the vinaya. The bodhisattva's way of a teacher requires ten years and five dharmas, as explained at the beginning. The narration of matters is threefold: first, one should recite the precepts; understanding the meaning is also what is instituted. Every day in the six periods, three each during the day and night. One says: while one's recitation is not yet fluent, it must be in the six periods; once it is fluent, it is not necessarily always so. A second says: it should always be in the six periods. Second, explaining that without reciting and without understanding, one should not act as a teacher. First, going against one's own mind deceives oneself; misleading the person before one deceives others.