CC Madhya 20.220

iṅhāra madhye kāro haya ‘avatāre’ gaṇana
yaiche viṣṇu, trivikrama, nṛsiṁha, vāmana
Word for word: 
iṅhāra madhye — of Them; kāro — of some; haya — there is; avatāre — as incarnations; gaṇana — counting; yaiche — as; viṣṇu — Lord Viṣṇu; trivikrama — Lord Trivikrama; nṛsiṁha — Lord Nṛsiṁha; vāmana — Lord Vāmana.
Translation: 
“Of these forms, some are considered incarnations. Examples are Lord Viṣṇu, Lord Trivikrama, Lord Nṛsiṁha and Lord Vāmana.