Bhagavad-gītā 17.19
BG 17.19
Open the full passageमूढग्राहेणात्मनो यत्पीडया क्रियते तपः । परस्योत्सादनार्थं वा तत्तामसमुदाहृतम् ॥१९॥
Sanskrit
mūḍha-grāheṇātmano yat pīḍayā kriyate tapaḥ parasyotsādanārthaṁ vā tat tāmasam udāhṛtam
Translation
Penance performed out of foolishness, with self-torture or to destroy or injure others, is said to be in the mode of ignorance.