Udāna 1.7

Aja­kalāpa­kasutta

Evaṃ me sutaṃ—​   ekaṃ samayaṃ bhagavā pāvāyaṃ viharati ajakalāpake cetiye, ajakalāpakassa yakkhassa bhavane. Tena kho pana samayena bhagavā rat­tandha­kā­ra­timisā­yaṃ abbhokāse nisinno hoti; devo ca ekamekaṃ phusāyati. Atha kho ajakalāpako yakkho bhagavato bhayaṃ chambhitattaṃ lomahaṃsaṃ uppādetukāmo yena bhagavā tenupasaṅkami; upasaṅkamitvā bhagavato avidūre tikkhattuṃ “akkulo pakkulo”ti akku­lapak­kuli­kaṃ akāsi: “eso te, samaṇa, pisāco”ti.

Atha kho bhagavā etamatthaṃ viditvā tāyaṃ velāyaṃ imaṃ udānaṃ udānesi: 

“Yadā sakesu dhammesu,
pāragū hoti brāhmaṇo;
Atha etaṃ pisācañca,
pak­kulañ­cātivat­tatī”ti.

Sattamaṃ.