Upakkilesasutta

Suttapiṭaka · Majjhimanikāya · Vol. 14 · Section 457

[457] So then, Anuruddha, I … (the Pali elides the refrain here). Then, Anuruddha, it occurred to me: 'Coarseness (duṭṭhulla) has arisen in me, and on account of coarseness my concentration (samādhi) fell away; when concentration falls away, the light and the vision of forms disappear. I shall so act that neither doubt (vicikicchā), nor inattention, nor dullness and drowsiness, nor terror, nor elation, nor coarseness will arise in me again.'

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.