增壹阿含經 17.1.p12

17.1.p12

At this time, Rāhula cultivated thusly, and a mind of desires was set free, not returning to the multitude of evils. [1] Contemplating with this mindfulness, he maintained the joy and bliss of roaming in the First Dhyāna, in which there is vitarka and vicāra. [2] When vitarka and vicāra came to a rest, he experienced inner bliss and single-pointedness of mind. Without initial and sustained application of the mind, with only bliss born from samādhi, he roamed in the Second Dhyāna. [3] Observing awareness, he experienced the physical pleasure that the Noble Ones constantly experience with equanimity, the complete satisfaction and mindfulness of roaming in the Third Dhyāna. [4] When both pain and pleasure were eliminated, there were no more worries and vexations. Without pain and pleasure, only completely pure and perfect mindfulness, he roamed in the Fourth Dhyāna.