Is the 'Id sacrifice valid if the animal is born without a rump or has had it cut off?

Question:
May Allah reward you, Your Eminence, father. This questioner asks: What is the ruling on offering as the 'Id sacrifice an animal that is born without a rump, like some of the imported sheep known as Barbars?

Answer:
The one that has no rump from the start is fine; there is no harm in that, as it is its natural state. But as for the one whose rump has been cut off, that is a defect; it is a deficiency in it. If it originally had a rump and it was cut off, that is a deficiency, and it is not valid. A ruling has been issued by one of the senior scholars stating that if the rump is cut off, it is not valid, because this is a defect.