Narrated Aisha, Ummul Mu'minin:

The Messenger of Allah ﷺ was asked about a man who divorced his wife three times, and she married another who entered upon her, but divorced her before having intercourse with her, whether she was lawful for the former husband. She said: The Prophet ﷺ replied: She is not lawful for the first (husband) until she tastes the honey of the other husband and he tastes her honey.

حَدَّثَنَا مُسَدَّدٌ، حَدَّثَنَا أَبُو مُعَاوِيَةَ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنِ الأَسْوَدِ، عَنْ عَائِشَةَ، قَالَتْ سُئِلَ رَسُولُ اللَّهِ ﷺ عَنْ رَجُلٍ طَلَّقَ امْرَأَتَهُ - يَعْنِي ثَلاَثًا - فَتَزَوَّجَتْ زَوْجًا غَيْرَهُ فَدَخَلَ بِهَا ثُمَّ طَلَّقَهَا قَبْلَ أَنْ يُوَاقِعَهَا أَتَحِلُّ لِزَوْجِهَا الأَوَّلِ قَالَتْ قَالَ النَّبِيُّ ﷺ
" لاَ تَحِلُّ لِلأَوَّلِ حَتَّى تَذُوقَ عُسَيْلَةَ الآخَرِ وَيَذُوقَ عُسَيْلَتَهَا " .