King Mahāsudassana 2.3.1

2.3.1

Atha kho, ānanda, rājā mahāsudassano mahāviyūhaṃ kūṭāgāraṃ pavisitvā sovaṇṇamaye pallaṅke nisinno vivicceva kāmehi vivicca akusalehi dhammehi savitakkaṃ savicāraṃ vivekajaṃ pītisukhaṃ paṭhamaṃ jhānaṃ upasampajja vihāsi.

Then he entered the Chamber of the Grand Tower and sat on the golden couch. Quite secluded from sensual pleasures, secluded from unskillful qualities, he entered and remained in the first absorption, which has the rapture and bliss born of seclusion, while placing the mind and keeping it connected.