[1] This type of divorce is called zihār: a common practice in Arabia before the Prophet (ﷺ). If someone declared his wife as unlawful for him as the zahr (back) of his mother is unlawful for him, his wife would be divorced. Islam abolished this divorce. Allah says: “As for those among you who divorce their wives by likening them to their mothers, they are not their mothers; their mothers are none but those who gave birth to them.” See 58:2.
[2] Adoption of a child or an orphan is not permissible by ascribing the child to other than their real parents. Whereas, it is permissible for one to sponsor a child or host them in their home and care for them as they care for their own children, except for legal matters.
[3] He (ﷺ) is more worthy of their obedience and loyalty.
[4] A previous ruling that allowed inheritance between Muslims, especially between the Emigrants and the Helpers, was abrogated. Only relatives can inherit from one another now, whereas non-heirs can have a share through a bequest of a deceased, up to one-third of the estate. See 4:7, 11-13, 32-33, 176, 8:75.
[5] i.e., the Preserved Tablet (al-Lawh al-Mahfūz).