Mahabharata 12.60.35

12.60.35

śūdreṇa ca na hātavyo bhartā kasyāṃcidāpadi |
atirekeṇa bhartavyo bhartā dravyaparikṣaye |
na hi svamasti śūdrasya bhartṛhāryadhano hyasau || 35 ||

He should wait upon the three other classes according to their order of seniority. A Sudra should never amass wealth, lest, by his wealth, he makes the members of the three superior classes obedient to him. By this he would incur sin. With the king's permission, however, a Sudra, for performing religious acts, may earn wealth. I shall now tell thee the profession he should follow and the means by which he may earn his livelihood. It is said that Sudras should certainly be maintained by the (three) other orders. Worn-out umbrellas, turbans, beds and seats, shoes, and fans, should be given to the Sudra servants. Torn clothes which are no longer fit for wear, should be given away by the regenerate classes unto the Sudra. These are the latter's lawful acquisitions. Men conversant with morality say that if the Sudra approaches any one belonging to the three regenerate orders from desire of doing menial service, the latter should assign him proper work. Unto the sonless Sudra his master should offer the funeral cake. The weak and the old amongst them should be maintained. The Sudra should never abandon his master, whatever the nature or degree of the distress into which the latter may fall. If the master loses his wealth, he should with excessive zeal be supported by the Sudra servant. A Sudra cannot have any wealth that is his own. Whatever he possesses belongs lawfully to his master. Sacrifice has been laid down as a duty of the three other orders.