Verse 4:34 of the Qur'an does Not Command Husbands to Strike their Wives

Rather, the Meaning for wa-iḍ'ribūhunna (وَاضْرِبُوهُنَّ) in 4:34 is "Set Forth from them [in Divorce]," Not "Strike them"

For do Not Keep them Intending Harm, and whoever does that has Certainly Wronged himself

4:34, Qur'an
…Those [wives] from whom you fear contempt - (1) advise them; [then if they persist], (2) avoid them in bed; and [finally], (3) set forth from them [in divorce, (not "strike them")]…

2:231, Qur'an
…[For] do not keep them, intending harm, to transgress [against them].  And whoever does that has certainly wronged himself…

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1.  God has Ordained Divorce, so for those Wives whom you Fear Contempt, Advise them

66:2, Qur'an
God has already ordained the dissolution of your oaths [of marriage] for you [through divorce]…

4:34, Qur'an
…[And so for] those [wives] from whom you fear contempt - (1) advise them… -

4:35, Qur'an
[Whereby] if you fear dissension between the two, send an arbitrator from his people and an arbitrator from her people.  If they both desire reconciliation, God will cause it between them.  Indeed, God is Knowing and Aware.

2:226 - 227, Qur'an
…[And so] if they [do] return [to normal relations] - then indeed, God is Forgiving and Merciful.  [But] if they decide on divorce - then indeed, God is Hearing and Knowing.

2.  Then, Avoid them in Bed for a Waiting Period of Four Months

4:34, Qur'an
…[But if they persist], (2) avoid them in bed… -

2:226 - 227, Qur'an
[Whereby] for those who swear [to not have sexual relations] with their wives, it is a waiting time of four months…

65:1, Qur'an
[For] when you divorce women, O prophet, divorce them for their waiting period and keep count of the waiting period…

3.  Then, When they have Reached their Term, "Set Forth from them [in Divorce]," Not "Strike them"

For When you Divorce Women, Either Retain them According to Acceptable Terms or Release them According to Acceptable Terms - but do Not Keep them Intending Harm

4:34, Qur'an
Men are maintainers of women because of what God has given in preference to one over the other and because they spend from their wealth. So righteous [women] are devoutly obedient, guarding the unseen which God would have them guard. But those [wives] from whom you fear contempt - (1) advise them [whereby if you fear dissension, then send an arbitrator]; [but if they persist], (2) avoid them in bed [for a waiting period of four months]; and [finally], (3) set forth from them [in divorce].  But if they obey you [once more], do not seek a way against them.  Indeed, God is Most High and Most Great.

2:231, Qur'an
[And thus,] when you divorce women and they have reached their term, either retain them according to acceptable terms or release them according to acceptable terms, and do not keep them, intending harm, to transgress [against them].  And whoever does that has certainly wronged himself.  And do not take the verses of God in jest.  And remember the favor of God upon you and what has been sent down to you of the Book and wisdom by which He instructs you. And fear God and know that God is Knowing of all things.

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Muhammad did Not Marry a 6, or 7, or 9 Year Old Child