Shiva Purana

siva.sh/siva-purana/saturda-samhita/1/21

ततोऽस्य पार्श्वतो दिव्याः प्रादुर्भूताः कुमारकाः ।। पीतवस्त्रा हि सकला योगमार्गप्रवर्तकाः ।।२१।।

sanskrit

Then from his sides sons of divine features issued forth. All of them had yellow garments and they were the instigators of the Yogic path.

english translation

tato'sya pArzvato divyAH prAdurbhUtAH kumArakAH || pItavastrA hi sakalA yogamArgapravartakAH ||21||

hk transliteration by Sanscript