法苑珠林 26.12

26.12

無迫窄苦。故得此智。或有餘說。若諸有情施他種種大妙飲食。由彼業力能引此智。若諸有情不造惱害他業。常作饒益他事。由斯業故在母腹中。不為風熱痰陰病等之所逼切。後出胎時無迫窄苦。是故能憶諸宿住事。故有是說。若諸有情住在母腹及出胎時。不受眾病迫窄苦者。皆應能憶過去生事。但由母病及迫窄苦悉皆忘之。

they have no suffering of constriction, and therefore they attain this cognition. Or others say: if sentient beings give others various large amounts of exquisite food and drink, by the power of that karma it can induce this cognition. If sentient beings do not create karma that torments or harms others, but constantly perform matters that benefit others, by this karma, while in the mother's womb they are not oppressed by wind, heat, phlegm, cold, and other diseases; when they later emerge from the womb, they have no suffering of constriction. Therefore they are able to remember past life events. Hence it is said: if sentient beings dwelling in the mother's womb and emerging from the womb do not experience the sufferings of numerous diseases and constriction, they should all be able to remember past life events; it is only because of the mother's diseases and the suffering of constriction that they forget them all.'