عَنْ ثَوْبَانَ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «أَيُّمَا امْرَأَةٍ سَأَلَتْ زَوْجَهَا طَلَاقًا فِي غَيْرِ مَا بَأْسٍ فَحَرَامٌ عَلَيْهَا رَائِحَةُ الْجَنَّةِ» . رَوَاهُ أَحْمَدُ وَالتِّرْمِذِيُّ وَأَبُو دَاوُدَ وَابْنُ مَاجَهْ والدارمي
Translation
Abu Huraira reported God’s Messenger as saying, “There are three things which, whether undertaken seriously or in jest, are treated as serious

marriage, divorce and taking back a wife after a divorce which is not final.” Tirmidhi and Abu Dawud transmitted it, Tirmidhi saying this is a hasan gharib tradition.