Answer
(Fatwa: 1174/1014=L/1429)
The husband can punish his wife if she disobeys but within Shariah limits i.e. first the husband should convince her politely. Secondly if she is not under control after persuasion, he should separate her bed from his. If she is not controlled despite gentle convincing, then it is allowed to beat her a little without hurting her physically. Also, in Hadith one is asked to avoid beating on face. The last option of convincing wife is to have a little beating but according to Hadith: good men do not beat their wives (لن یضرب خیارکم), as this thing is not narrated about any prophet.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband