It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) concerning this saying of Allah Almighty, "And (also forbidden to you are) married women, except those whom your right hands possess" [Surah Al-Nisa': 24] , that he said: "(Relations with) any married woman is fornication, except for a woman who was taken captive in war." This hadith is sahih (authentic) on the condition of the two Shaykhs (Bukhari and Muslim), and they did not record it.