Chapter 68: Divorce
Narrated Abu Huraira: The Prophet (ﷺ) said, "Allah has forgiven my followers the evil thoughts that occur to their minds, as long
as such thoughts are not put into action or uttered." And Qatada said, "If someone divorces his wife
just in his mind, such an unuttered divorce has no effect.:
Sahih al-Bukhari 5269