Declension table of ?viṣṇumat

Masculine	Singular	Dual	Plural
Nominative	viṣṇumān	viṣṇumantau	viṣṇumantaḥ
Vocative	viṣṇuman	viṣṇumantau	viṣṇumantaḥ
Accusative	viṣṇumantam	viṣṇumantau	viṣṇumataḥ
Instrumental	viṣṇumatā	viṣṇumadbhyām	viṣṇumadbhiḥ
Dative	viṣṇumate	viṣṇumadbhyām	viṣṇumadbhyaḥ
Ablative	viṣṇumataḥ	viṣṇumadbhyām	viṣṇumadbhyaḥ
Genitive	viṣṇumataḥ	viṣṇumatoḥ	viṣṇumatām
Locative	viṣṇumati	viṣṇumatoḥ	viṣṇumatsu

Compound viṣṇumat -

Adverb -viṣṇumantam