Sahih Bukhari Volume 7, Book 68, Hadith 5319

حَدَّثَنى عَمْرُو بْنُ عَلِيٍّ، حَدَّثَنَا يَحْيَى، حَدَّثَنَا هِشَامٌ، قَالَ حَدَّثَنِي أَبِي، عَنْ عَائِشَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم‏.‏ حَدَّثَنَا عُثْمَانُ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدَةُ، عَنْ هِشَامٍ، عَنْ أَبِيهِ، عَنْ عَائِشَةَ ـ رضى الله عنها ـ أَنَّ رِفَاعَةَ، الْقُرَظِيَّ تَزَوَّجَ امْرَأَةً، ثُمَّ طَلَّقَهَا فَتَزَوَّجَتْ آخَرَ فَأَتَتِ النَّبِيَّ صلى الله عليه وسلم فَذَكَرَتْ لَهُ أَنَّهُ لاَ يَأْتِيهَا، وَإِنَّهُ لَيْسَ مَعَهُ إِلاَّ مِثْلُ هُدْبَةٍ فَقَالَ ‏"‏ لاَ حَتَّى تَذُوقِي عُسَيْلَتَهُ، وَيَذُوقَ عُسَيْلَتَكِ ‏"

Narrated By 'Aisha : Rifa'a Al-Qurazi married a lady and then divorced her whereupon she married another man. She came to the Prophet and said that her new husband did not approach her, and that he was completely impotent. The Prophet said (to her), "No (you cannot remarry your first husband) till you taste the second husband and he tastes you (i.e. till he consummates his marriage with you)."