Declension table of ?retasya

Neuter	Singular	Dual	Plural
Nominative	retasyam	retasye	retasyāni
Vocative	retasya	retasye	retasyāni
Accusative	retasyam	retasye	retasyāni
Instrumental	retasyena	retasyābhyām	retasyaiḥ
Dative	retasyāya	retasyābhyām	retasyebhyaḥ
Ablative	retasyāt	retasyābhyām	retasyebhyaḥ
Genitive	retasyasya	retasyayoḥ	retasyānām
Locative	retasye	retasyayoḥ	retasyeṣu

Compound retasya -

Adverb -retasyam -retasyāt