Deuteronomy 25:19

תמחה את זכר עמלק THOU SHALT WIPE AWAY THE REMEMBRANCE OF AMALEK, — both man and woman, infant and suckling, ox and sheep (a quotation from I Samuel 15:3, stating how the Amalekites were to be destroyed), so that the name of Amalek should never again be mentioned even in connection with a beast, in that one could say: “This beast belonged to Amalek” (Pesikta Zutrata).

וְהָיָ֡ה בְּהָנִ֣יחַ יְהֹוָ֣ה אֱלֹהֶ֣יךָ ׀ לְ֠ךָ֠ מִכׇּל־אֹ֨יְבֶ֜יךָ מִסָּבִ֗יב בָּאָ֙רֶץ֙ אֲשֶׁ֣ר יְהֹוָה־אֱ֠לֹהֶ֠יךָ נֹתֵ֨ן לְךָ֤ נַחֲלָה֙ לְרִשְׁתָּ֔הּ תִּמְחֶה֙ אֶת־זֵ֣כֶר עֲמָלֵ֔ק מִתַּ֖חַת הַשָּׁמָ֑יִם לֹ֖א תִּשְׁכָּֽח׃ {פ}

Therefore it shall be, when the Lord thy God has given thee rest from all thy enemies round about, in the land which the Lord thy God gives thee for an inheritance to possess it, that thou shalt blot out the remembrance of ῾Amaleq from under heaven; thou shalt not forget.