Nakhasikhāsutta
Evaṁ me sutaṁ— ekaṁ samayaṁ bhagavā sāvatthiyaṁ viharati jetavane anāthapiṇḍikassa ārāme. Atha kho bhagavā parittaṁ nakhasikhāyaṁ paṁsuṁ āropetvā bhikkhū āmantesi: “Taṁ kiṁ maññatha, bhikkhave, katamaṁ nu kho bahutaraṁ, yo vāyaṁ mayā paritto nakhasikhāyaṁ paṁsu āropito, ayaṁ vā mahāpathavī”ti?
A Fingernail
So I have heard. At one time the Buddha was staying near Sāvatthī in Jeta’s Grove, Anāthapiṇḍika’s monastery. Then the Buddha, picking up a little bit of dirt on his fingernail, addressed the mendicants: “What do you think, mendicants? Which is more: the little bit of dirt on my fingernail, or this great earth?”