Richika's became the of Vishvamitra. By worshipping the gods who have shares in sacrificial offerings, with Riches, (he acquired success in after life).
विश्वामित्रस्य पुत्रत्वमृचीकतनयोऽगमत्। ऋग्भिः स्तुत्वा महाबाहो देवान् वै यज्ञभागिनः॥