Giving the vowed money to a poor family instead of paying it to the Masjid

Q: A man made a vow that he would give a sum of money in charity every month to a particular mosque if he got a job. He has already got a job. He then found out that there was a poor family that needs help and charity. Can he give such a sum of money to the poor family instead of the mosque?

A: You have to fulfill the vow you made and give the sum of money you have to the mosque. Moreover, you have no right to give it to the poor as you vowed to give it to the mosque. (Part No. 23; Page No. 340) May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.