Brahma Sutras
ॐ व्यपदेशाच्च क्रियायां न चेन्निर्देशविपर्ययः ॐ ॥ २-३-३६॥
And the soul is an agent because of the mention (as such) in respect of action; were it not so, there would have been a contrary indication.
english translation
OM vyapadezAcca kriyAyAM na cennirdezaviparyayaH OM ॥ 2-3-36॥
hk transliteration by Sanscript