The majority of scholars say that such an vow doesn’t take place. However, if one misses Fajr prayer, he should expiate for that as it is like an oath.

if a person says: ” Oh Allah, if you make “something” happen, i will pray fajr everyday ” ? Fajr prayer is something Allah enjoined us. So is this vow invalid? No kaffara needed if he doesnt pray fajr? I heard that making vow to something which is already fard (like praying fajr) is invalid. So it is like this person didn’t make a vow.Is this true?

Oaths | March 5, 2017 4:31 am
Previous

What is tge rule one one says if this man leaving my daughter i will fast for 2 months. The lady is about 70 years her daughter had a lot of problems with her husband. She is divorce now its about 5 years now. My question is this lady should fast for 2 months. Now she is not really that well. She has to take her medicine. Bp medicine. What can she do. Please help.
Next

In order to not to go back to the sin again can we take oath or anything else can we do if we do that sin again? Is that permissible?