Bhagavatapurana 8.6.12

8.6.12

yathāgnimedhasy amṛtaṃ ca goṣu bhuvy annamambūdyamane ca vṛttim /
yogairmanuṣyā adhiyanti hi tvāṃ guṇeṣu buddhyā kavayo vadanti //

12. Just as men obtain by proper means fire in the fuel (wood); nectar (ghee) in cows, food in earth, water by labour, (_i.e._, by digging) and living by business-like efforts, so also by force of intelligence the wise find Thee in the midst of the gunas and also describe Thee as such.