菩薩從兜術天降神母胎說廣普經 1.76

1.76

「或時菩薩入悲三昧，遍滿南方無限無量阿僧祇恒河沙等剎眾生之類，悲念欲令解脫；以恒河沙中取一沙，過恒河沙國土下一沙，如是盡恒河沙悲心不盡，堪任代彼眾生受苦；皆是菩薩堅固誓願，眾生見者以清淨心，遠離眾惡妄想已斷，即於胎中成無上道。

"Or at times a bodhisattva enters the samādhi of compassion, pervading the south throughout infinite, immeasurable, asankhyeya realms, equal to the sands of the Ganges, toward the categories of sentient beings, mindfully compassionate, wishing to bring about their liberation. Taking one grain of sand from the sands of the Ganges, passing lands equal to the sands of the Ganges, and depositing one grain, in this way exhausting the sands of the Ganges, their compassionate mind is not exhausted, bearing suffering on behalf of those sentient beings. These are all the firm vows of the bodhisattva; sentient beings who behold them with a pure mind leave behind all evils, their false thoughts already severed, immediately accomplishing the unsurpassed Path within the womb.