Manusmriti

siva.sh/manusmriti/10/93

इतरेषां तु पण्यानां विक्रयादिह कामतः । ब्राह्मणः सप्तरात्रेण वैश्यभावं नियच्छति ॥ ९३ ॥

sanskrit

But by willingly selling in this world other (forbidden) commodities, a Brahmana assumes after seven nights the character of a Vaisya.

english translation

itareSAM tu paNyAnAM vikrayAdiha kAmataH | brAhmaNaH saptarAtreNa vaizyabhAvaM niyacchati || 93 ||

hk transliteration by Sanscript