Shiva Purana

siva.sh/siva-purana/rudra-samhita/179/54

तुलसीपत्रविच्छेदं शंखं हित्वा करोति यः ।। भार्याहीनो भवेत्सोपि रोगी स्यात्सप्तजन्मसु ।। ५४ ।।

sanskrit

If any one plucks Tulasī leaves without using conch he will become a widower and a chronic patient for seven births.

english translation

tulasIpatravicchedaM zaMkhaM hitvA karoti yaH || bhAryAhIno bhavetsopi rogI syAtsaptajanmasu || 54 ||

hk transliteration by Sanscript