Mahabharata 1.3.35
तमुपाध्यायः पीवानमपश्यत्उवाच चैनम्वत्सोपमन्यो केन वृत्तिं कल्पयसिपीवानसि दृढमिति
tamupādhyāyaḥ pīvānamapaśyatuvāca cainamvatsopamanyo kena vṛttiṃ kalpayasipīvānasi dṛḍhamiti
Our plain-language meaning of this verse is waiting for scholar review.