Aristotle, Magna Moralia

οἷόν φασί ποτέ τινα γυναῖκα φίλτρον τινὶ δοῦναι πιεῖν, εἶτα τὸν ἄνθρωπον ἀποθανεῖν ὑπὸ τοῦ φίλτρου, τὴν δʼ ἄνθρωπον ἐν Ἀρείῳ πάγῳ ἀποφυγεῖν· οὗ παροῦσαν διʼ οὐθὲν ἄλλο ἀπέλυσαν ἢ διότι οὐκ ἐκ προνοίας. ἔδωκε μὲν γὰρ φιλίᾳ, διήμαρτεν δὲ τούτου· διὸ οὐχ ἑκούσιον ἐδόκει εἶναι, ὅτι τὴν δόσιν τοῦ φίλτρου οὐ μετὰ διανοίας τοῦ ἀπρλέσθαι αὐτὸν ἐδίδου. ἐνταῦθα ἄρα τὸ ἑκούσιον πίπτει εἰς τὸ μετὰ διανοίας.

For example, they say that once a woman gave someone a love potion to drink, and then the man died from the potion, but the woman was acquitted at the Areopagus; there, when she appeared, they released her for no other reason than that [she had acted] without premeditation. For she gave it out of love, but missed her aim; and so it did not seem to be voluntary, since she did not give the potion with the intention that he should die. Here, then, the voluntary falls under what is done with intention.