Answer
(Fatwa: 1185/1185=M/1430)
It is surprising that the elders commit mistake in order to rectify the mistakes of the younger ones. Objecting to faults, warning and beating in proper manner is allowable rather sometimes desirable, but transgressing the limit set by Shariah is unlawful. At first mistake, one should be made understood properly. In case of repeating the same mistake, he should be sternly warned. If the mistake is repeated or the mistake is so grave that requires beating, he should not be beaten more than thrice, and in this case also the face and tender parts should not be hit.
Allah (Subhana Wa Ta’ala) knows Best
Darul Ifta,
Darul Uloom Deoband