法華文句記 2.76

2.76

常精進，如《大寶積經》云：「是菩薩為一眾生經無量劫隨逐不捨，猶不受化，無一念棄捨，以身心俱進故。」義通四悉，教迹觀心準例可知。

Regarding Nityodyukta (Ever Vigorous), as the Mahāratnakūṭa Sūtra says: 'For the sake of a single sentient being, this bodhisattva pursues and does not abandon them through immeasurable kalpas, even if they do not receive transformation, without a single thought of abandonment, because body and mind advance together.' The meaning extends to the four siddhāntas; teachings, traces, and contemplation of mind may be known by following the analogy.