Declension table of ?sthānāsana

Neuter	Singular	Dual	Plural
Nominative	sthānāsanam	sthānāsane	sthānāsanāni
Vocative	sthānāsana	sthānāsane	sthānāsanāni
Accusative	sthānāsanam	sthānāsane	sthānāsanāni
Instrumental	sthānāsanena	sthānāsanābhyām	sthānāsanaiḥ
Dative	sthānāsanāya	sthānāsanābhyām	sthānāsanebhyaḥ
Ablative	sthānāsanāt	sthānāsanābhyām	sthānāsanebhyaḥ
Genitive	sthānāsanasya	sthānāsanayoḥ	sthānāsanānām
Locative	sthānāsane	sthānāsanayoḥ	sthānāsaneṣu

Compound sthānāsana -

Adverb -sthānāsanam -sthānāsanāt