He—may Allah have mercy on him—also said:
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Regarding an animal that has lost some of its teeth, termed “al-hatmāʾ,” there are two opinions within Ahmad’s school. The sounder opinion is that it is valid as an Eid sacrifice. As for an animal with no upper teeth, it is valid by agreement. A white animal is preferable to a black one. If it has black markings around its eyes and mouth and on its legs, it resembles the Prophet’s sacrificial animal—may Allah bless him and grant him peace.
He was asked:
What should be said when slaughtering the Eid sacrifice? How should it be slaughtered, and how should it be divided?
He replied:
Praise be to Allah.
The sacrificial animal should be turned towards the qiblah and laid on its left side. The person slaughtering it should say:
“In the name of Allah; Allah is the Greatest. O Allah, accept this from me just as