Mudgalapurana 3.20.8

3.20.8

ekā vṛttiriyaṃ proktā dvitīyāṃ śṛṇu sāmpratam |
bhūmeḥ karṣaṇahīnena vṛṣṭyā'nnaṃ tatra jāyate ||

This is declared as one mode of livelihood; hear now the second. / Without plowing the earth, food is produced there by rain;