Śrīmad-Bhāgavatam · Text 11.17.48
Who is speaking and story frame
वैश्यवृत्त्या तु राजन्यो जीवेन्मृगययापदि ।
चरेद् वा विप्ररूपेण न श्ववृत्त्या कथञ्चन ॥ ४८ ॥
vaiśya-vṛttyā tu rājanyo
jīven mṛgayayāpadi
cared vā vipra-rūpeṇa
na śva-vṛttyā kathañcana
A king or other member of the royal order who cannot maintain himself by his normal occupation may act as a vaiśya, may live by hunting or may act as a brāhmaṇa by teaching others Vedic knowledge. But he may not under any circumstances adopt the profession of a śūdra.
Read this verse on Vedabase.ioThis verse has no purport; its meaning is explained by the verses around it.
From Canto 10, chapter 14 onward, the translation and purports were completed by Śrīla Prabhupāda's disciples after his departure, and published by the Bhaktivedanta Book Trust.