釋禪波羅蜜次第法門 2.17

2.17

七者、善來得戒。道機時熟，佛呼：「善來！」即便得戒。

7. Obtaining the precepts through "Come, good [monk]": when the capacity for the path was ripe, the Buddha called, "Come, good [monk]!" and he immediately obtained the precepts.