Is it permissible for a mother to pay from her zakat money to her son so that he may go with her for Hajj and assist her therein, given that his income is limited?

For Hajj to be obligatory upon a woman, it is stipulated that she must be able to afford her own expenses and the expenses of her Mahram (definition) accompanying her. If the brother travels with his mother for Hajj, he is entitled to have his travel costs covered from her private funds. However, it is not permissible for her to pay for this from her Zakat (definition) money, because by doing so, she would be protecting her own wealth, as if she were paying Zakat to herself. According to some scholars, it is permissible for a woman to travel for the obligatory Hajj without a Mahram if she finds a trusted company and there is no fear of temptation (fitna).