Dutiyakassapa Sutta
In Sāvatthi.
Standing to the side,
The young Deva Kassapa
Spoke to the Awakened One in verses:
“A monk should be a meditator, liberated in mind,
Longing to be perfect in heart,
Who has understood the fleeting nature of the world,
Elevated in mind and independent as a reward.”[1]
[1] “Bhikkhu siyā jhāyī vimuttacitto, Ākaṅkhe ce hadayassānupattiṃ; Lokassa ñatvā udayabbayañca, Sucetaso anissito tadānisaṃso”ti.