Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 18

Sanskrit:

श्रीराजोवाचभगवान् भीष्मकसुतां रुक्‍मिणीं रुचिराननाम् ।राक्षसेन विधानेन उपयेम इति श्रुतम् ॥ १८ ॥

ITRANS:

śrī-rājovācabhagavān bhīṣmaka-sutāṁrukmiṇīṁ rucirānanāmrākṣasena vidhānenaupayema iti śrutam

Translation:

King Parīkṣit said: The Supreme Lord married Rukmiṇī, the beautiful-faced daughter of Bhīṣmaka, in the Rākṣasa style — or so I have heard.

Purport:

Śrīla Śrīdhara Svāmī quotes the following smṛti statement: rākṣaso yuddha-haraṇāt. “A Rākṣasa marriage takes place when the bride is stolen from one’s rival suitors by force.” Similarly, Śukadeva Gosvāmī himself has already said, rājñaḥ pramathya: Kṛṣṇa had to beat down opposing kings to take Rukmiṇī.