Mahabharata 4.9.6

4.9.6

virāṭa uvāca |
tvaṃ brāhmaṇo yadi vā kṣatriyo'si samudranemīśvararūpavānasi |
ācakṣva me tattvamamitrakarśana na vaiśyakarma tvayi vidyate samam || 6 ||

"Hearing these words, Virata said, 'Thou must either be a Brahmana or a Kshatriya. Thou lookest as if thou wert the lord of the entire earth surrounded by the sea. Tell me truly, O thou that mowest down thy foes. The office of a Vaisya is not fit for thee. Tell me from the dominions of what king thou comest, and what thou knowest, and in what capacity thou wouldst remain with us, and also what pay thou wouldst accept.'