盂蘭盆經讚述 1.39

1.39

[When] the sūtra states, 'If all disciples of the Buddha uphold this sūtra and Dharma': The commentary says: The fourth teaches upholding. 'To uphold' is to have faith; 'to keep' is to be mindful. When faith is spoken of, it removes the distinction between right and wrong; when mindfulness is spoken of, it deeply prevents the error of forgetting the teaching. Therefore, he exhorts them to faithful mindfulness so that the teaching may circulate.