Shiva Purana
अष्टाविंशतिरित्येते क्रमशः पंचपंचकम् ॥ कोटीनामानुपूर्व्येण पंच पंचैव नायकाः ॥ ४३॥
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