止觀輔行傳弘決 3.34

3.34

精進滿相者，如好施太子求如意珠，如第一卷末。得珠墜海而抒大海，正使筋骨枯盡，終不懈廢，誓得如意以給眾生濟其身苦。諸天問之。答云：「生生不休。」諸天見此精進，助其抒海，海水減半。諸龍見海水減，恐海乾竭，送珠與之。

As for the marks of the fulfillment of vigor: take, for example, Prince Sudāna seeking the wish-fulfilling jewel, as described at the end of the first fascicle. Having obtained the jewel, it fell into the ocean, and he bailed the great ocean; even if his sinews and bones were dried up and exhausted, he would never give up or slacken, vowing to obtain the wish-fulfilling jewel to bestow upon sentient beings and relieve their bodily suffering. The devas asked him [about it], and he replied: "Life after life without rest." Seeing this vigor, the devas helped him bail the ocean, and the ocean water was reduced by half. The nāgas, seeing the ocean water decrease and fearing the ocean would dry up, presented the jewel to him.