雲門匡真禪師廣錄 2.310

2.310

問僧：「佛法還有青黃赤白也無？」代云：「東方甲乙木，西方庚辛金。」

He asked a monk: "Does the Buddhadharma have blue, yellow, red, and white, or not?" Answering on their behalf, he said: "The east is jiǎ and yǐ wood; the west is gēng and xīn metal."