Immediately go wherever there is good protection for the cows and brāhmaṇas and wherever the Vedas are studied in terms of the varṇāśrama principles. Set fire to those places and cut from the roots the trees there, which are the source of life.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
यत्र यत्र द्विजा गावो वेदा वर्णाश्रमाः क्रियाः । तं तं जनपदं यात सन्दीपयत वृश्चत
yatra yatra dvijā gāvo vedā varṇāśramāḥ kriyāḥ | taṃ taṃ janapadaṃ yāta sandīpayata vṛścata
SB 7.2.12