Shōbōgenzō - Dōgen

13th century

“Then Śākyamuni Buddha, in the order on Vulture Peak in the Western Country, India, among an assembly of millions, picked up an udumbara flower and winked. At that time the face of Venerable Mahākāśyapa broke into a smile. Śākyamuni Buddha said, ‘I possess the right Dharma-eye treasury and the fine mind of nirvana. I transmit them to Mahākāśyapa.’”

Dōgen, Page 214a3, Page 214c, Shōbōgenzō: The True Dharma-eye Treasury, 13th century, Translated into English by Gudo Wafu Nishijima and Chodo Cross, Numata Center for Buddhist Translation and Research, 2008.