Māndhātā begot three sons in the womb of Bindumatī, the daughter of Śaśabindu. These sons were Purukutsa, Ambarīṣa, and Mucukunda, a great mystic yogī. These three brothers had fifty sisters, who all accepted the great sage Saubhari as their husband.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
शशबिन्दोर्दुहितरि बिन्दुमत्यामधान्नृपः । पुरुकुत्समम्बरीषं मुचुकुन्दं च योगिनम् । तेषां स्वसारः पञ्चाशत्सौभरिं वव्रिरे पतिम्
śaśabindorduhitari bindumatyāmadhānnṛpaḥ | purukutsamambarīṣaṃ mucukundaṃ ca yoginam | teṣāṃ svasāraḥ pañcāśatsaubhariṃ vavrire patim
SB 9.6.38