Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 35
Sanskrit:
चैलेन बद्ध्वा तमसाधुकारीणंसश्मश्रुकेशं प्रवपन् व्यरूपयत् ।तावन्ममर्दु: परसैन्यमद्भुतंयदुप्रवीरा नलिनीं यथा गजा: ॥ ३५ ॥
ITRANS:
cailena baddhvā tam asādhu-kārīṇaṁsa-śmaśru-keśaṁ pravapan vyarūpayattāvan mamarduḥ para-sainyam adbhutaṁyadu-pravīrā nalinīṁ yathā gajāḥ
Translation:
Lord Kṛṣṇa tied up the evil-doer with a strip of cloth. He then proceeded to disfigure Rukmī by comically shaving him, leaving parts of his mustache and hair. By that time the Yadu heroes had crushed the extraordinary army of their opponents, just as elephants crush a lotus flower.
Purport:
Lord Kṛṣṇa used His same sharp sword to give the wicked Rukmī a peculiar haircut.