What should be a mother's answer to her son, who was born with only four fingers on his right hand, when he asks her why he is different if his peers mock him?

You should reflect on Allah's wisdom behind physical afflictions, for Allah does not create anything in vain. This could be a test for both the parents and the child. You must not dwell on painful memories, so as not to hinder your duties and fall into discontent. This affliction is not great, as Allah has perfected his intellect and limbs, and you should thank Allah for these blessings. It is recommended to care for the child so that he acquires skills that distinguish him and compensate for his deficiency, such as memorizing the Quran and seeking knowledge. Avoid dealing with him with mere emotion or showing sadness in front of him, and warn his siblings not to mock him. Cooperate with the school in caring for him and protecting him from those who mock him. Make sure he is among the people of the mosques to avoid bad company. When he grows up, make him understand that his affliction is not severe compared to other afflictions, and that he is in the blessing of Islam and monotheism, and that this world is a temporary abode of trials, and true happiness is in Paradise.