What is the ruling on a mother not returning money deposited with her by her son, under the pretext that he has not cut his hair?

The questioner is obliged to be dutiful to his mother and to treat her kindly to the best of his ability. If the mother is poor or in need of money, there is no sin upon her for taking her son's money, and she is not obliged to return it. However, if she is not in need, she is not allowed to take her son's money and must return it if he asks for it. Regarding the mother's request for her son to shave his hair, he must obey her, as this falls under filial piety and kindness, and because this request often benefits either the mother or the son.