Declension table of ?adhyātmaśāstra

Neuter	Singular	Dual	Plural
Nominative	adhyātmaśāstram	adhyātmaśāstre	adhyātmaśāstrāṇi
Vocative	adhyātmaśāstra	adhyātmaśāstre	adhyātmaśāstrāṇi
Accusative	adhyātmaśāstram	adhyātmaśāstre	adhyātmaśāstrāṇi
Instrumental	adhyātmaśāstreṇa	adhyātmaśāstrābhyām	adhyātmaśāstraiḥ
Dative	adhyātmaśāstrāya	adhyātmaśāstrābhyām	adhyātmaśāstrebhyaḥ
Ablative	adhyātmaśāstrāt	adhyātmaśāstrābhyām	adhyātmaśāstrebhyaḥ
Genitive	adhyātmaśāstrasya	adhyātmaśāstrayoḥ	adhyātmaśāstrāṇām
Locative	adhyātmaśāstre	adhyātmaśāstrayoḥ	adhyātmaśāstreṣu

Compound adhyātmaśāstra -

Adverb -adhyātmaśāstram -adhyātmaśāstrāt