Authentic
Sunan an-Nasa'i 3413
"O Messenger of Allah, she is lying; he is having intercourse with her, but she wants to go back to her first husband." The Messenger of Allah said: "She cannot do that until she tastes his sweetness."
" لَيْسَ ذَلِكَ حَتَّى تَذُوقِي عُسَيْلَتَهُ "