Is the marriage of an elderly man to a young woman considered adultery if understanding the verse ("Al-Qist in orphans") means starting with one wife first?

The connection between polygyny and justice towards orphans is understood by knowing the reason for the revelation of the verse. The marriage of an elderly man to a young woman is legally valid if it is with her consent, and it does not contradict justice nor is it considered adultery. A Muslim should ask people of knowledge and not deduce rulings without qualification, because speaking about Allah without knowledge is associated with polytheism, as confirmed by His saying, the Almighty: "Say, 'My Lord has only forbidden immoralities—what is apparent of them and what is concealed—and sin and oppression without right, and that you associate with Allah that for which He has not sent down authority, and that you say about Allah that which you do not know.'" {Al-A'raf: 33}.