One verse

Bhagavad Gita 16.23

16.23

यः शास्त्रविधिमुत्सृज्य वर्तते कामकारतः | न स सिद्धिमवाप्नोति न सुखं न परां गतिम् ||१६-२३||

yaḥ śāstravidhimutsṛjya vartate kāmakārataḥ . na sa siddhimavāpnoti na sukhaṃ na parāṃ gatim ||16-23||

yaḥ
anyone who
śāstra-vidhim
the regulations of the scriptures
utsṛjya
giving up
vartate
remains
kāma-kārataḥ
acting whimsically in lust
na
never
saḥ
he
siddhim
perfection
avāpnoti
achieves
na
never
sukham
happiness
na
never
parām
the supreme
gatim
perfectional stage

He who discards scriptural injunctions and acts according to his own whims attains neither perfection, nor happiness, nor the supreme destination.