Mahabharata 11.9.18
शिल्पिनो वणिजो वैश्याः सर्वकर्मोपजीविनःते पार्थिवं पुरस्कृत्य निर्ययुर्नगराद्बहिः
śilpino vaṇijo vaiśyāḥ sarvakarmopajīvinaḥte pārthivaṃ puraskṛtya niryayurnagarādbahiḥ
Our plain-language meaning of this verse is waiting for scholar review.