Shiva Purana

siva.sh/siva-purana/saturda-samhita/4/18

तत्रापि मम ते पुत्राश्चत्वारो योगसाधकाः ।। भविष्यंति महात्मानस्तन्नामानि ब्रुवे विधे।।१८।।

sanskrit

There also four sons will be born of me all aspiring after the Yogic path and noble-souled. O Brahmā, I shall mention their names.

english translation

tatrApi mama te putrAzcatvAro yogasAdhakAH || bhaviSyaMti mahAtmAnastannAmAni bruve vidhe||18||

hk transliteration by Sanscript