Udyoga Parva Adhyāya 92: Kṛṣṇasya sabhāpraveśaḥ
Krishna’s Entry into the Royal Assembly
आकेशग्रहणान्मित्रमकार्यात् संनिवर्तयन् । अवाच्य: कस्यचिद् भवति कृतयत्नो यथाबलम्,जो अपने मित्रको उसकी चोटी पकड़कर भी बुरे कार्यसे हटानेके लिये यथाशक्ति प्रयत्न करता है, वह किसीकी निन्दाका पात्र नहीं होता है
ākeśa-grahaṇān mitram akāryāt saṁnivartayan | avācyaḥ kasyacid bhavati kṛta-yatno yathā-balam ||
One who, even seizing his friend by the hair, strives to the best of his ability to restrain him from a wrongful deed does not become blameworthy in anyone’s eyes.
(वैशग्पायन उवाच
Preventing a friend from wrongdoing is a dharmic duty; even firm physical restraint is not blameworthy when motivated by protection from adharma and undertaken with sincere, proportionate effort.
In Vaiśaṁpāyana’s narration, a general ethical principle is stated: a well-intentioned person who tries, to the extent of his ability, to stop a friend from an improper act should not be condemned for the severity of the intervention.