佛說處處經 1.25

1.25

The Buddha said: "That Maitreya does not come down is due to four nidānas: first, there are times when merit corresponds to that other realm; second, the people in this realm are crude and none can receive the sūtras; third, his merits are not yet complete; fourth, there are people in the world who can expound the sūtras; therefore Maitreya does not descend. When he descends in the future, there remain five hundred and seventy million six hundred thousand years. In Maitreya's time, people's eyes will all see for four thousand li. That in Maitreya's time people's eyes will see for four thousand li is attained through originally practicing ten nidānas: first, not covering other people's eyesight; second, not harming other people's eyes; third, not obscuring or shielding other people's eyes; fourth, not concealing other people's goodness; fifth, not watching killing; sixth, not watching theft; seventh, not watching sexual misconduct; eighth, not spying on secret matters and other people's shortcomings; ninth, not watching any evil deeds; tenth, lighting lamps in Buddhist temples; these are the ten things.