Garudapurana 1.82.12

1.82.12

sthitā viprāstadā śaptā gayāyāṃ brāhmaṇāstataḥ /
mā bhūttraipuruṣī vidyā mā bhūttraipuruṣaṃ dhanam //

the brāhmaṇas stayed there; then the brāhmaṇas were cursed at Gayā: / "Let not learning extend for three generations; let not wealth extend for three generations;