Shiva Purana
शिवावतारा अमिता सद्भक्तहितकारकाः ॥ सङ्ख्या न शक्यते कर्तुं तेषां च मुनिसत्तमाः ॥ ५॥
O excellent sages, Śiva’s incarnations are countless and conducive to the benefit of good devotees. Their number cannot be counted or specified.
english translation
zivAvatArA amitA sadbhaktahitakArakAH ॥ saGkhyA na zakyate kartuM teSAM ca munisattamAH ॥ 5॥
hk transliteration by Sanscript