Pṛthivy-Āyāma-Vistara (Extent of the Earth) and Jambūdvīpa–Navavarṣa Description
पीतश्च दक्षिणेनासौ तेन वैश्यत्वमिष्यते / भृङ्गपत्रनिभश्चापि पश्चिमेन समाचितः
pītaśca dakṣiṇenāsau tena vaiśyatvamiṣyate / bhṛṅgapatranibhaścāpi paścimena samācitaḥ
He who is yellow in the southern quarter is held to bear the nature of a Vaiśya; and he who is set in the west is said to be of a hue like the leaf of the bhṛṅga.