Manusmriti
योऽहिंसकानि भूतानि हिनस्त्यात्मसुखैच्छया । स जीवांश्च मृतश्चैव न क्व चित् सुखमेधते ॥ ४५ ॥
He who injures innoxious beings from a wish to (give) himself pleasure, never finds happiness, neither living nor dead.
english translation
yo'hiMsakAni bhUtAni hinastyAtmasukhaicchayA । sa jIvAMzca mRtazcaiva na kva cit sukhamedhate ॥ 45 ॥
hk transliteration by Sanscript