As stated:

The Tathāgata has the divine eye, and with this eye, buddha fields defying enumeration and extending throughout the reaches of space, throughout the vast expanse of the entire phenomenal world of the ten directions, can appear to him; and wherever sentient beings are undergoing ages of destruction and creation, he sees all. Any sentient beings that might appear, that die and are born, in higher or lower realms, and their karma, he sees all. Any bodhisattvas that appear, and their death, conception and birth, he sees all. Any buddhas who manifest the realisation of true and complete awakening, the turning of the Wheel of Dharma, the giving up of the composite nature of existence and passing into final nirvana, he sees all. Any hearers who appear, are liberated and pass into final nirvana, he sees all. Any solitary buddhas who appear, demonstrate magical powers and perfect their attainments, he sees all. Even sentient beings that cannot be seen, that do not appear to non-Buddhists who have developed the five supercognitions, nor to hearers, solitary buddhas, or bodhisattvas, appear to the divine eye of the Tathāgata. The invisible beings the Tathāgata can see just within the area of a cartwheel, are far more numerous than all the gods and humans within the worlds of the entire trichiliocosm. The realms of beings that cannot be seen are immeasurable. The Buddha considers the beings throughout all buddha realms with his divine tathāgata vision to see which sentient beings may be trained. And the Buddha appears in front of all those who are able to learn, training them without the knowledge of other beings who are not. This is the ninth tathāgata-activity of the Tathāgata.¹