Sifrei Mitzvot untuk Ulangan 7:2

וּנְתָנָ֞ם יְהוָ֧ה אֱלֹהֶ֛יךָ לְפָנֶ֖יךָ וְהִכִּיתָ֑ם הַחֲרֵ֤ם תַּחֲרִים֙ אֹתָ֔ם לֹא־תִכְרֹ֥ת לָהֶ֛ם בְּרִ֖ית וְלֹ֥א תְחָנֵּֽם׃

dan apabila Yang Mahakekal, Allahmu, menyerahkan mereka kepadamu sehingga engkau mengalahkan mereka, engkau harus menumpas habis mereka. Janganlah engkau mengadakan perjanjian dengan mereka, dan jangan mengasihani mereka.

Mishneh Torah, Kings and Wars

It is a Positive Commandment to exterminate the Seven Nations, as it says, “surely, you shall destroy them” (Deut. 20:17). Anyone who comes across any of these nations and fails to kill them violates a Negative Commandment, as it says, “you shall not keep alive any soul” (Deut. 20:16). Nonetheless, they have already all been destroyed and their memory forgotten.
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Sefer Hamitzvot of Rasag

Gimel. Their [Canaanite] nations- do not make treaties with them
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Mishneh Torah, Positive Mitzvot

To exterminate the seven Canaanite nations from the land of Israel, as it is said, “But thou shalt utterly destroy them….” (Deut. 20:17).
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