Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 22
Sanskrit:
रुक्म्यग्रजो रुक्मरथो रुक्मबाहुरनन्तर: ।रुक्मकेशो रुक्ममाली रुक्मिण्येषा स्वसा सती ॥ २२ ॥
ITRANS:
rukmy agrajo rukmarathorukmabāhur anantaraḥrukmakeśo rukmamālīrukmiṇy eṣā svasā satī
Translation:
Rukmī was the first-born son, followed by Rukmaratha, Rukmabāhu, Rukmakeśa and Rukmamālī. Their sister was the exalted Rukmiṇī.