佛祖統紀 2.27

2.27

菩薩在母胎。行住坐臥無所妨礙。晨朝為色界諸天說法。日中為欲界天。晡時為諸鬼神。於夜三時。亦復如是。成熟眾生（因果經○此經既云行住坐臥一日六時為諸天鬼神說法即小乘住胎之文）護明菩薩。謂天人金團曰。往昔補處菩薩託生之家。須具六十種功德。三代清淨。汝下閻浮為我觀察（云云護明即聖善）。

While the Bodhisattva was in his mother's womb, walking, standing, sitting, and lying down were without hindrance. In the early morning, he preached the Dharma for the gods of the form realm; at midday, for the gods of the desire realm; in the late afternoon, for the spirits and ghosts; and during the three periods of the night, it was likewise: he matured sentient beings (Sūtra of Cause and Effect; as this sūtra already states that in walking, standing, sitting, and lying down he preached the Dharma for the gods, spirits, and ghosts during the six periods of the day, it is a text on the Small Vehicle's dwelling in the womb). Bodhisattva Prabhāpāla said to the deva Suvarṇapiṇḍa: 'The house where in the past a bodhisattva one birth away from Buddhahood entrusted his birth had to possess sixty kinds of merits and three generations of purity. Go down to Jambudvīpa and observe on my behalf' (and so forth; Prabhāpāla is indeed Śāntimata).