Tuvaṭakasuttaniddesa

Suttapiṭaka · Khuddakanikāya · Mahāniddesa · Vol. 29 · Section 749

[749] One should not indulge in much sleep; ardent (ātāpī), one should devote oneself to wakefulness (jāgariya); laziness, deceit, laughter, play, and sexual intercourse together with adornment — these one should abandon.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.