Sahih Bukhari Volume 3, Book 49, Hadith 2543

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ يُوسُفَ، أَخْبَرَنَا مَالِكٌ، عَنْ رَبِيعَةَ بْنِ أَبِي عَبْدِ الرَّحْمَنِ، عَنْ مُحَمَّدِ بْنِ يَحْيَى بْنِ حَبَّانَ، عَنِ ابْنِ مُحَيْرِيزٍ، قَالَ رَأَيْتُ أَبَا سَعِيدٍ ـ رضى الله عنه ـ فَسَأَلْتُهُ فَقَالَ خَرَجْنَا مَعَ رَسُولِ اللَّهِ صلى الله عليه وسلم فِي غَزْوَةِ بَنِي الْمُصْطَلِقِ فَأَصَبْنَا سَبْيًا مِنْ سَبْىِ الْعَرَبِ، فَاشْتَهَيْنَا النِّسَاءَ فَاشْتَدَّتْ عَلَيْنَا الْعُزْبَةُ وَأَحْبَبْنَا الْعَزْلَ، فَسَأَلْنَا رَسُولَ اللَّهِ صلى الله عليه وسلم فَقَالَ ‏"‏ مَا عَلَيْكُمْ أَنْ لاَ تَفْعَلُوا، مَا مِنْ نَسَمَةٍ كَائِنَةٍ إِلَى يَوْمِ الْقِيَامَةِ إِلاَّ وَهْىَ كَائِنَةٌ ‏"‏‏.‏

Narrated By Ibn Muhairiz : I saw Abu Said and asked him about coitus interruptus. Abu Said said, "We went with Allah's Apostle, in the Ghazwa of Barli Al-Mustaliq and we captured some of the 'Arabs as captives, and the long separation from our wives was pressing us hard and we wanted to practice coitus interruptus. We asked Allah's Apostle (whether it was permissible). He said, "It is better for you not to do so. No soul, (that which Allah has) destined to exist, up to the Day of Resurrection, but will definitely come, into existence."