If a father vows to fast fifteen days if his son enters university, is he required to fast if he stays there for a week?

The questioner : Peace be upon you.

The Shaykh : And upon you be peace.

The questioner : Shaykh, yes. My husband vowed that if our son entered university, he would fast fifteen days. This was because our son said, “You don’t want me to enter it.” He did not vow for the sake of Allah; he vowed through his son that he would fast fifteen days in university. But the son entered, stayed for a week, and then left the university. I mean, is he required to fulfill the vow and fast, or is it over? Since he left, does he have no account to answer for?

The Shaykh : He said, “If they enter the university committees.”

The questioner : He says that the son said to her, “Father, you don’t want me to enter the university.” Yes. And if you had entered me. He said, “I vowed for the sake of Allah. The day he entered, I would fast fifteen days.” And by Allah, the son entered the university. But the son did not feel comfortable in the university. He came, meaning he felt tightness or something, and left the university. He stayed for a week and then left the university. So now, does my father have to fast his vow, or does it not catch up with him in one day?

The Shaykh : He must fast, because the son entered.

The questioner : I mean, if he says, “He didn’t study; he was going to leave,” he didn’t study and had no involvement.

The Shaykh : No, he has no involvement in the matter; he must fast.

The questioner : He must fast fifteen days. He doesn’t look at the son. Yes. May Allah reward you with good.

The Shaykh : May Allah bless you.