Is it sufficient to slaughter one 'Id sacrifice for the members of two households from the same family who share one guardian and one source of financial maintenance?

Question:
May Allah love you. The questioner is your brother in Allah, 'A.H.B. from the Western Region of the Kingdom. He says: My mother and her children live in a village, and my father has passed away. I live in a city far away from them. I am their guardian (wali). During the festival of sacrifice ('Id al-Adha), I go to my mother and her children, and my mother gives me one of her sheep as the sacrifice. It is a single animal, intended for her and her children, while I am the guardian for myself, my wife, and my children. Is it sufficient to slaughter one sacrifice for me, my children, my wife, my mother, and her children, or is it necessary to slaughter two sacrifices, one for me and one for them? If one is not sufficient, what should I do about the past? Please give us a ruling, and may Allah reward you.

Answer:
One sacrifice is sufficient for the head of the household and the members of the household. One sacrifice is sufficient for the members of the household and the head of the household. If one intends to include someone else with them, that is permissible, and that person will share in the reward. If you limit yourselves to one, there is no harm. If you slaughter a sacrifice for yourself and your household, and she slaughters another sacrifice for herself and her household, the matter is broad in this regard, and praise be to Allah. The 'Id sacrifice is not obligatory; rather, it is a recommended practice (sunnah).