Does a vow end with the death of the one who made it, or are the children required to continue it?

Question:
May Allah reward you and bless you. This questioner says — or rather, this is a woman asking, and she says: A mother vowed that if Allah healed her child, she would slaughter a sacrificial animal every year. Allah healed her child, and she began slaughtering an animal every year until she died. Before her death, she instructed her daughter to continue this practice, but in the last two years it has become difficult for the daughter. What is required of her?

Answer:
The daughter owes nothing; the vow ended with the death of the one who made it. The daughter owes nothing in this matter if she intends it as fulfillment of the vow. However, if she intends that this sacrificial animal is an independent bequest, and its meat is distributed to the poor and needy as voluntary charity, then this is called a bequest, not a vow. The vow ended with the death of the one who made it. Yes.