Ruling on one who vows to pray at a time when prayer is prohibited

Question:
In her final question, she says: Among the times when prayer is prohibited is after 'Asr. I had a vow, so I prayed the vow and recited two parts of the Noble Qur'an, and I prayed after 'Asr. My sister told me that this is one of the times when prayer is prohibited. I said to her: This is a vow, not making up an obligatory prayer. Do I have to repeat it, or was what I did valid? May Allah reward you with good.

Answer:
It is obligatory for you to repeat it; because it is not a place for prayer. After 'Asr and after Fajr, it is not a place for prayer except for prayers with specific causes, such as the prescribed prayer for an eclipse after 'Asr, the greeting of the mosque, and the prayer of circumambulation. As for the vow, there are other times in which you can pray, such as at night, at Dhuhr, or at Duha. If you specified praying after 'Asr, then you have committed a sinful vow, and you owe an expiation for an oath for this prayer; because a vow to pray after 'Asr and after Fajr is a sinful vow; because it is not a time for prayer, it is a time of prohibition; so you owe the expiation of an oath. The expiation for a vow is the expiation of an oath. Yes.

The presenter : May Allah reward you with good, and may He do you good.