Sifrei Mitzvot sur L’Exode 21:12

מַכֵּ֥ה אִ֛ישׁ וָמֵ֖ת מ֥וֹת יוּמָֽת׃

"Celui qui frappe un homme et le fait mourir sera puni de mort.

Mishneh Torah, Positive Mitzvot

That the Court shall pass sentence of death by strangulation, as it is said, “Both the adulterer and the adulteress shall surely be put to death”**Where the mode of execution is not specifically set forth, it is to take place by strangulation (Rashi in loco). (Lev. 20:10).