كتاب الرضاع
17  
The Book of Suckling
(9)
Chapter: It is permissible to have intercourse with a female captive after it is established that she is not pregnant, and if she has a husband, then her marriage is annulled when she is captured
(9)
باب جَوَازِ وَطْءِ الْمَسْبِيَّةِ بَعْدَ الاِسْتِبْرَاءِ وَإِنْ كَانَ لَهَا زَوْجٌ انْفَسَخَ نِكَاحُهَا بِالسَّبْي
Sahih Muslim 1456 c
Likewise, the above hadith has been narrated through another chain.
وَحَدَّثَنِيهِ يَحْيَى بْنُ حَبِيبٍ الْحَارِثِيُّ، حَدَّثَنَا خَالِدٌ، - يَعْنِي ابْنَ الْحَارِثِ - حَدَّثَنَا شُعْبَةُ، عَنْ قَتَادَةَ، بِهَذَا الإِسْنَادِ نَحْوَهُ ‏.‏
Reference : Sahih Muslim 1456c
In-book reference : Book 17, Hadith 44
USC-MSA web (English) reference : Book 8, Hadith 3433
  (deprecated numbering scheme)