Manusmriti

siva.sh/manusmriti/12/72

मैत्राक्षज्योतिकः प्रेतो वैश्यो भवति पूयभुक् । चैलाशकश्च भवति शूद्रो धर्मात् स्वकाच्च्युतः ॥ ७२ ॥

sanskrit

A Vaisya who has fallen off from his duty becomes a Maitrakshagyotika Preta, who feeds on pus; and a Sudra, a Kailasaka (Preta, who feeds on moths).

english translation

maitrAkSajyotikaH preto vaizyo bhavati pUyabhuk | cailAzakazca bhavati zUdro dharmAt svakAccyutaH || 72 ||

hk transliteration by Sanscript