The ruling on giving a special gift to a dutiful son to the exclusion of his siblings

Question:
Regarding the righteous among the children, Shaykh Salih, some children grow up with a righteous upbringing from a young age, and as a result, they have an attraction for their parents that leads them to treat them well. Is there a word on this topic?

Answer:
This is part of dutifulness to parents, and this is its reward from Allah (Glorified and Exalted is He). It is not permissible for a father to favor some of his children over others because he is dutiful to them, or because he loves them more than the others, or for something similar to that. As for the dutifulness that a child performs toward his father, it is obligatory upon him, and his reward is with Allah (Glorified and Exalted is He). Allah (Mighty and Majestic) commanded justice between children on the tongue of the Prophet (peace and blessings be upon him), in his saying (peace and blessings be upon him) So he should not favor the one who is dutiful to him over the others. Yes.