淨名經集解關中疏 1.44

1.44

集眾法寶如海導師　此下三明獲果益文二。初標導師得寶喻也。六師邪導不獲真果。八正利物必至涅槃故借喻焉。肇曰。導眾生入大乘海。採眾法寶使必獲無難。猶海師善導商人必獲夜光。

"Accumulating the multitude of Dharma jewels like a guide on the ocean." From here down is the third [section], explaining the benefit of obtaining the fruit, which has two parts: first, presenting the metaphor of the sea guide obtaining jewels. The deviant guides of the six teachers do not obtain the true fruit, whereas the Eightfold Noble [Path] benefits beings and will definitely reach nirvāṇa, which is why this metaphor is borrowed. Sengzhao says: "Leading sentient beings into the ocean of the Mahāyāna, gathering the multitude of Dharma jewels, they cause them to definitely attain them without difficulty, just as a sea master skillfully guides merchants so that they will definitely obtain luminous pearls."