ANSWER:

If a person cuts it deliberately he is sinful although this does not impact the validity of his sacrifice. There is nothing on you if you forgot. 

As we know, one should not cut hair and nails during first ten days in dhul hijja who are sacrificing animals. I am not sure my husband exactly when cut his nails. If he cut during first 10days of jil hajj, what should we do now as we are sacrificing animals on Eid ul azha.We forget that we should not cut our nails and hair. What to do now to accept our qurbani?

Slaughtering | August 18, 2018 5:38 pm
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Regarding the ruling for not cutting hair – does this ruling apply only for males ? Or does this apply on females as well For example, if my father is giving the udhya is he only the one who is NOT allowed to cut hair and nails? Are other female members of his family allowed to cut hair or wax ?
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My brother lives in UK and he appointed someone in Hyderabad India for Udhiya. Eid salah in UK will be at a day earlier, can his animal be slaughtered in Hyderabad after my brother in UK offered his salah? (A day before eid in Hyderabad).