If something is missed by a person and he is sad about it, is it permissible for him to say: "If I had done such-and-such, this good would not have been missed from me?"

Question:
He says: Honorable Shaykh, may Allah grant you success. Sometimes a person misses something from the matters of this world, and he is sad about it and says, "If I had done such-and-such, this good would not have been missed from me." Is this statement permissible?

Answer:
If it is in the category of regretting the loss of good, then there is no harm in it. This is because "If I had known what I know now, I would not have slaughtered the sacrificial animals, but would have made it an 'Umrah and not exited the state of ihram with you." This is in the category of regretting the loss of good, not in the category of blaming the divine decree. Yes.