Bhagwad Gita
Chapter 16, Verse 23
यः शास्त्रविधिमुत्सृज्य वर्तते कामकारतः।न स सिद्धिमवाप्नोति न सुखं न परां गतिम्।।16.23।।
But he who discards scriptural injunctions and acts according to his own whims attains neither perfection, nor happiness, nor the supreme destination.