A man saying: “I will do such-and-such, if Allah wills.” Does this count as a vow?

Question:
May Allah reward you with good and do you well. A message was sent by one of the brothers. He says: I am Muhammad Dawud Ahmad, a Sudanese working in the Kingdom, and I have been following your program for a long time and never miss it. Whenever a question comes to mind that I want to present to your Eminence, I always find a sufficient answer in one of the episodes of this program. We ask Allah to grant you success and increase the number of people like you. Now, I have some questions I would like answered, may Allah reward us. If I say, “I will perform Hajj this year on behalf of my grandfather, if Allah wills,” will this be a vow? Knowing that I have already performed Hajj for myself. May Allah reward you with good. This phrase alone, meaning any vow.

Answer:
If you say, “I will perform Hajj for my father or for so-and-so, if Allah wills,” this is a promise. It is a commitment from yourself that you will perform Hajj for someone else or for yourself, and this is not binding nor obligatory upon you. A vow is only if you say, “It is upon me to perform Hajj for so-and-so for the sake of Allah,” then this becomes a vow that must be fulfilled. Yes.