Declension table of ?yajñaśāstra

Neuter	Singular	Dual	Plural
Nominative	yajñaśāstram	yajñaśāstre	yajñaśāstrāṇi
Vocative	yajñaśāstra	yajñaśāstre	yajñaśāstrāṇi
Accusative	yajñaśāstram	yajñaśāstre	yajñaśāstrāṇi
Instrumental	yajñaśāstreṇa	yajñaśāstrābhyām	yajñaśāstraiḥ
Dative	yajñaśāstrāya	yajñaśāstrābhyām	yajñaśāstrebhyaḥ
Ablative	yajñaśāstrāt	yajñaśāstrābhyām	yajñaśāstrebhyaḥ
Genitive	yajñaśāstrasya	yajñaśāstrayoḥ	yajñaśāstrāṇām
Locative	yajñaśāstre	yajñaśāstrayoḥ	yajñaśāstreṣu

Compound yajñaśāstra -

Adverb -yajñaśāstram -yajñaśāstrāt