Numbers 5:26

וְקָמַ֨ץ הַכֹּהֵ֤ן מִן־הַמִּנְחָה֙ אֶת־אַזְכָּ֣רָתָ֔הּ וְהִקְטִ֖יר הַמִּזְבֵּ֑חָה וְאַחַ֛ר יַשְׁקֶ֥ה אֶת־הָאִשָּׁ֖ה אֶת־הַמָּֽיִם׃

καὶ δράξεται ὁ ἱερεὺς ἀπὸ τῆς θυσίας μνημόσυνον αὐτῆς καὶ ἀνοίσει αὐτὸ ἐπὶ τὸ θυσιαστήριον, καὶ μετὰ ταῦτα ποτιεῖ τὴν γυναῖκα τὸ ὕδωρ.

Greek text from Swete's edition, CC BY-SA 4.0

Y tomará el sacerdote un puñado del presente, en memoria de ella, y lo quemará sobre el altar, y después dará á beber las aguas á la mujer.

Then the priest is to take a handful of the grain offering as a memorial portion and burn it on the altar; after that he is to have the woman drink the water.