注維摩詰經 9.142

9.142

什曰：本無施意，因彼來求發我施心，則於我為師，故起師想。如月氏王出行遊觀，有數千乞人在路側舉手唱聲各請所須。王問大臣：「此是何人？何所陳說？」臣答言：「乞人也。」王智慧利根即解其意，語大臣曰：「彼等我大師，非乞人也。汝不解其言耳。彼所須者，為我說法，非為乞也。彼言我等前世亦作國王，不修布施故受斯報。王今不施，後亦當爾。以此故當，知是我大師也。」肇曰：乞者雖欲自益而實益我，故想為善師也。

[Kumāra]jīva says: Originally lacking the intention to give, because that person came begging, they stimulated my mind of giving; thus, with respect to me, they are a teacher, and hence one gives rise to the thought of a teacher. For instance, when a king of the Yuezhi went out on an excursion to sightsee, several thousand beggars on the roadside raised their hands and called out, each asking for their needs. The king asked his ministers: 'Who are these people? What are they stating?' A minister replied: 'They are beggars.' The king, possessing sharp faculties of wisdom, immediately understood their intent and told the ministers: 'They are my great teachers, not beggars. You simply do not understand their words. Their requesting their needs is expounding the Dharma for me, not begging. They are saying: "In our past lives, we were also kings, but because we did not practice giving, we received this retribution. If the king does not give now, he will also be like this in the future." For this reason, you should know that they are my great teachers.' [Seng]zhao says: Although the beggars wish to benefit themselves, they actually benefit me; therefore one regards them as good teachers.