Declension table of ?hastastha

Neuter	Singular	Dual	Plural
Nominative	hastastham	hastasthe	hastasthāni
Vocative	hastastha	hastasthe	hastasthāni
Accusative	hastastham	hastasthe	hastasthāni
Instrumental	hastasthena	hastasthābhyām	hastasthaiḥ
Dative	hastasthāya	hastasthābhyām	hastasthebhyaḥ
Ablative	hastasthāt	hastasthābhyām	hastasthebhyaḥ
Genitive	hastasthasya	hastasthayoḥ	hastasthānām
Locative	hastasthe	hastasthayoḥ	hastastheṣu

Compound hastastha -

Adverb -hastastham -hastasthāt