Declension table of ?sahasāna

Masculine	Singular	Dual	Plural
Nominative	sahasānaḥ	sahasānau	sahasānāḥ
Vocative	sahasāna	sahasānau	sahasānāḥ
Accusative	sahasānam	sahasānau	sahasānān
Instrumental	sahasānena	sahasānābhyām	sahasānaiḥ sahasānebhiḥ
Dative	sahasānāya	sahasānābhyām	sahasānebhyaḥ
Ablative	sahasānāt	sahasānābhyām	sahasānebhyaḥ
Genitive	sahasānasya	sahasānayoḥ	sahasānānām
Locative	sahasāne	sahasānayoḥ	sahasāneṣu

Compound sahasāna -

Adverb -sahasānam -sahasānāt