Sahih al-Bukhari 5116
Narrated Abu Jamra:
I heard Ibn `Abbas (giving a verdict) when he was asked about the Mut'a with the women, and he 
permitted it (Nikah-al-Mut'a). On that a freed slave of his said to him, "That is only when it is very 
badly needed and women are scarce." On that, Ibn `Abbas said, "Yes."
حَدَّثَنَا مُحَمَّدُ بْنُ بَشَّارٍ، حَدَّثَنَا غُنْدَرٌ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي جَمْرَةَ، قَالَ سَمِعْتُ ابْنَ عَبَّاسٍ، سُئِلَ عَنْ مُتْعَةِ النِّسَاءِ، فَرَخَّصَ فَقَالَ لَهُ مَوْلًى لَهُ إِنَّمَا ذَلِكَ فِي الْحَالِ الشَّدِيدِ وَفِي النِّسَاءِ قِلَّةٌ أَوْ نَحْوَهُ‏.‏ فَقَالَ ابْنُ عَبَّاسٍ نَعَمْ‏.‏