Declension table of ?yajñasādh

Neuter	Singular	Dual	Plural
Nominative	yajñasāt	yajñasādhī	yajñasāndhi
Vocative	yajñasāt	yajñasādhī	yajñasāndhi
Accusative	yajñasāt	yajñasādhī	yajñasāndhi
Instrumental	yajñasādhā	yajñasādbhyām	yajñasādbhiḥ
Dative	yajñasādhe	yajñasādbhyām	yajñasādbhyaḥ
Ablative	yajñasādhaḥ	yajñasādbhyām	yajñasādbhyaḥ
Genitive	yajñasādhaḥ	yajñasādhoḥ	yajñasādhām
Locative	yajñasādhi	yajñasādhoḥ	yajñasātsu

Compound yajñasāt -

Adverb -yajñasāt