यत्तु कामेप्सुना कर्म साहङ्कारेण वा पुनः। क्रियते बहुलायासं तद्राजसमुदाहृतम्॥
yattu kāmepsunā karma sāhaṅkāreṇa vā punaḥ kriyate bahulāyāsaṃ tadrājasamudāhṛtam
Meaning
But even though an action involves the most strenuous endeavor, yet if the doer is seeking to gratify their desires and is filled with personal vanity, it may be assumed to originate in passion.
English translation by Shri Purohit Swami (1935), public domain. Sanskrit text in the public domain. About Duvidha