From Aśmaka, Bālika took birth. Because Bālika was surrounded by women and was therefore saved from the anger of Paraśurāma, he was known as Nārīkavaca [“one who is protected by women”]. When Paraśurāma vanquished all the kṣatriyas, Bālika became the progenitor of more kṣatriyas. Therefore he was known as Mūlaka, the root of the kṣatriya dynasty.
Srimad Bhagavata Purana
श्रीमद्भागवतमहापुराणम्
मूल श्लोकः
अश्मकान्मूलको जज्ञे यः स्त्रीभिः परिरक्षितः । नारीकवच इत्युक्तो निःक्षत्रे मूलकोऽभवत्
aśmakānmūlako jajñe yaḥ strībhiḥ parirakṣitaḥ | nārīkavaca ityukto niḥkṣatre mūlako'bhavat
SB 9.9.40