"Is she permissible for the first (husband to remarry her)?" He said: "No, not until he tastes her sweetness as the first tasted her sweetness." (Using translation from Nasāʾī 3412)
أَنَّ رَجُلًا طَلَّقَ امْرَأَتَهُ ثَلَاثًا فَتَزَوَّجَهَا آخَرُ فَطَلَّقَهَا قَبْلَ أَنْ يَمَسَّهَا فَسُئِلَ رَسُولُ اللهِ ﷺ أَتَحِلُّ لِلْأَوَّلِ؟ فَقَالَ لَا حَتَّى يَذُوقَ عُسَيْلَتَهَا كَمَا ذَاقَ الْأَوَّلُ