Srimad-Bhagavatam: Canto 9 - Chapter 1 - Verse 5-6
यस्तालजङ्घान् यवनाञ्छकान् हैहयबर्बरान् ।नावधीद् गुरुवाक्येन चक्रे विकृतवेषिण: ॥ ५ ॥मुण्डाञ्छ्मश्रुधरान् कांश्चिन्मुक्तकेशार्धमुण्डितान् ।अनन्तर्वासस: कांश्चिदबहिर्वाससोऽपरान् ॥ ६ ॥
yas tālajaṅghān yavanāñchakān haihaya-barbarānnāvadhīd guru-vākyenacakre vikṛta-veṣiṇaḥ
Sagara Mahārāja, following the order of his spiritual master, Aurva, did not kill the uncivilized men like the Tālajaṅghas, Yavanas, Śakas, Haihayas and Barbaras. Instead, some of them he made dress awkwardly, some of them he shaved clean but allowed to wear mustaches, some of them he left wearing loose hair, some he half shaved, some he left without underwear, and some without external garments. Thus these different clans were made to dress differently, but King Sagara did not kill them.