This is exactly what surah 4:34 says:
(Several different translations)
4:34 Husbands should take full care of their wives, with [the bounties] God has given to some more than others and with what they spend out of their own money. Righteous wives are devout and guard what God would have them guard in the husbands’ absence. If you fear high-handedness from your wives, remind them [of the teaching of God], then ignore them when you go to bed, then hit them. If they obey you, you have no right to act against them. God is most high and great.
Men are in charge of women, because Allah hath made the one of them to excel the other, and because they spend of their property (for the support of women). So good women are the obedient, guarding in secret what Allah hath guarded. As for those from whom ye fear rebellion, admonish them and banish them to beds apart, and scourge them. Then if they obey you, seek not a way against them. Lo! Allah is ever High Exalted, Great.
Men have authority over women because God has made the one superior to the other, and because they spend their wealth to maintain them. Good women are obedient. They guard their unseen parts because God has guarded them. As for those from whom you fear disobedience, admonish them and forsake them in beds apart, and beat them. Then if they obey you, take no further action against them. Surely God is high, supreme.
It isn't even if it's proven, but only if the husband fears rebellion!
I object to beating one's wife.