Maññamānasutta
Sāvatthinidānaṁ. Atha kho aññataro bhikkhu …pe… ekamantaṁ nisinno kho so bhikkhu bhagavantaṁ etadavoca: “sādhu me, bhante, bhagavā saṅkhittena dhammaṁ desetu …pe… ātāpī pahitatto vihareyyan”ti. “Maññamāno kho, bhikkhu, baddho mārassa; amaññamāno mutto pāpimato”ti. “Aññātaṁ, bhagavā, aññātaṁ, sugatā”ti.
Conceiving
At Sāvatthī. Then a mendicant went up to the Buddha … and asked him, “Sir, may the Buddha please teach me Dhamma in brief. When I’ve heard it, I’ll live alone, withdrawn, diligent, keen, and resolute.” “When you conceive, mendicant, you’re bound by Māra. Not conceiving, you’re free from the Wicked One.” “Understood, Blessed One! Understood, Holy One!”