The ruling on one who vowed to teach his son Islamic knowledge but was unable to do so

Question:
One of the listening brothers, whose name was indicated by the initials (A. M. A) from al-Bahah, says: I vowed when I was blessed with a male child that I would teach him religious education, but when he grew up, I was unable to do so, and he took another path. What is the ruling? And what do you advise me to do? May Allah reward you with good.

Answer:
You must teach him the religious sciences, and you must strive in that, and you must fulfill your vow. This is obligatory upon you even if you had not made the vow. It is obligatory for you to seek his well-being, teach him, and guide him to good. Since you have vowed this, it becomes more firmly obligatory. This is based on the saying of the Prophet (peace and blessings be upon him): And you have vowed an act of obedience to Allah, because teaching a child matters of religion, encouraging him in that, and caring for him is among the best acts of obedience.
Therefore, it is obligatory for you to fulfill your vow and to strive to teach him religion, even if he is already grown up. You must fulfill this and strive to bring him to the circles of knowledge, or to have him enroll in religious schools so that he learns. There is no harm in seeking the help of specific members of your family, such as uncles, brothers, or others, or good friends who can help you with this son.
May Allah reward you.

The presenter: May Allah reward you with good.