Shiva Purana

siva.sh/siva-purana/saturda-samhita/4/33

कपिलश्चासुरिः पञ्चशिखः शाल्वलपूर्वकः ।। चत्वारो योगिनः पुत्रा भविष्यन्ति समा मम ।। ३३ ।।

sanskrit

Four sons, all Yogins on a par with me, viz—Kapila, Āsuri, Śālvala and Pañcaśikha will be born of me.

english translation

kapilazcAsuriH paJcazikhaH zAlvalapUrvakaH || catvAro yoginaH putrA bhaviSyanti samA mama || 33 ||

hk transliteration by Sanscript