Shiva Purana

siva.sh/siva-purana/uma-samhita/8/43

अष्टाविंशतिरित्येते क्रमशः पंचपंचकम् ।। कोटीनामानुपूर्व्येण पंच पंचैव नायकाः ।। ४३।।

sanskrit

These are twenty-eight, five and five in order. There are five heroes in the order of the crores of names.

english translation

aSTAviMzatirityete kramazaH paMcapaMcakam || koTInAmAnupUrvyeNa paMca paMcaiva nAyakAH || 43||

hk transliteration by Sanscript