注維摩詰經 9.126

9.126

什曰：梵本云「無師倦」。外道師為弟子說法，法之要者則握而不與。菩薩則盡其所懷，故言無師倦也。

[Kumāra]jīva says: The Sanskrit text says 'without a teacher's weariness'. When teachers of non-Buddhist paths teach the Dharma to their disciples, they withhold the essentials of the teaching in their grasp and do not give them away. Bodhisattvas, on the other hand, reveal everything they hold in their hearts; hence it says 'without a teacher's weariness'.