What is the ruling on trading in the Christmas tree of Jesus Christ, upon him be peace? And who is Papa Noel? And is their celebration of him related to their religion? And is it permissible to name someone Nawal?

The celebrations of Christians for their religious holidays, such as Christmas, are part of their religious rites, and participating in them is unlawful and a great evil. It is forbidden to sell anything related to this occasion, such as a Christmas tree. "Santa Claus" is Father Nicholas, which means "Father of Christmas," and it is forbidden for a Muslim to be named with this name. As for the name "Nawwal," there is no harm in being named with it.