It seems that it is permissible to slaughter buffalo and it should follow the same ruling as a cow. Zebra is permissible.

Can buffalo be slaughtered as udhiyah..? Is it permissble to eat Zebra..?

Slaughtering | September 14, 2015 6:29 pm
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For udhiyah on Eid, is it better to slaughter in the city we live ourselves and distribute the meat. Or is it better for us to do it through some organization which will then distribute the meat to the poor in Yemen/Syria etc?
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I came to know that we have to give Aqiqah in our younger age. My father passed away and I asked my mother whether Aqiqah was given to me or not and she is not remember. Now I am 40 years old. This this case Do I have to give Aqiqah for me now ?