Thus have I heard:
On one occasion the Buddha was at the double-storied assembly hall of the Great Forest Monastery in the land of Vaiśālī. He announced to all the monks: “My state shall be that of parinirvāṇa after the passage of three months’ time.”
Thereupon the esteemed Ānanda rose from where he sat, straightened his clothing, and folded his hands. Then, in homage, he placed his hands together palm-to-palm and walked around the Buddha three times. He then knelt formally on one knee, placed his palms together, and fixed his eyes intently and steadfastly upon the Tathāgata. The venerable Mahākāśyapa and the great-being (mahāsattva) bodhisattva Maitreya also rose from where they sat, brought the palms of their hands together in homage, and gazed up at the honored face. These three men of great distinction then addressed the Buddha in one voice, saying:
“World-honored One! After you have passed away, O Tathāgata, how do living beings produce the bodhisattva mind, practice in accordance with the comprehensive sutras of the Great Vehicle (Mahayana), and, with right mindfulness, bring their thoughts into the realm of one reality? How do they avoid losing sight of the aspiration for ultimate enlightenment (bodhicitta)? Moreover, without cutting off worldly passions and without abandoning the five desires, how do they achieve purity of the sense faculties and eliminate accumulated impurities? Without giving up the five desires, how can they still become capable of seeing events and things free from encumbrance with the pure natural eyes received from their parents at birth?”
The Buddha addressed Ānanda:
“Hear me clearly! Hear me clearly, and consider this well! In the past, on Mount Vulture Peak and at other places, the Tathāgata has already expounded the one genuine path from many perspectives. And now, at this place, for the benefit of all living beings in the future who wish to follow the Supreme Way that is the Great Vehicle—and who wish to learn and follow the practice of Universal Sage, I will now expound the method4 for that, which I have kept in mind. Impurities, in any number, should be eliminated whether one perceives Universal Sage or not. This I will now explain to you, accordingly, in great detail.