Shariah ruling about the young one of the sacrificial animal
If the sacrificial animal gives birth to a young one, should that kid be slaughtered or given away in charity? The jurists have given different clarifications as per the financial status of the person making the sacrifice. If the person performing the sacrifice is poor, then that person should compulsorily slaughter the kid as well. For an affluent person, it is not compulsory that the kid be slaughtered. That person may slaughter it or give it away in charity. However, if the days of sacrifice have passed, then it is Compulsory (Wajib) to give it away in charity. If that kid is sold, then the money from that sale ought to be given away in charity.
If someone does not slaughter it, neither sells nor gives it away in charity and a year passes and that animal is now fit for sacrifice, then slaughtering such an animal is not permissible. A new animal has to be taken for this purpose. If someone does slaughter it, then as that animal had to be given away in charity, now its meat has to be given away in charity. Also the balance of the price of that (now grown up) animal has to be given away in charity. As mentioned in Fatawa A’alamgiri:
(Fatawa A’alamgiri, Vol. 5, Pg. No. 301)