For all the firstborn of the children of Israel [are] mine, [both] man and beast: on the day that I smote every firstborn in the land of Egypt I sanctified them for myself.
Jewish Publication Society of America Version (JPS1917) - Numbers 8:17 >For all the first-born among the children of Israel are Mine, both man and beast; on the day that I smote all the first-born in the land of Egypt I sanctified them for Myself.