Should I tell you what I heard the Messenger of Allah ﷺ say on the day of Hunayn: It is not lawful for a man who believes in Allah and the last day to water what another has sown with his water (meaning intercourse with women who are pregnant); it is not lawful for a man who believes in Allah and the Last Day to have intercourse with a captive woman till she is free from a menstrual course; and it is not lawful for a man who believes in Allah and the Last Day to sell spoil till it is divided.  

أَمَا إِنِّي لاَ أَقُولُ لَكُمْ إِلاَّ مَا سَمِعْتُ رَسُولَ اللَّهِ ﷺ يَقُولُ يَوْمَ حُنَيْنٍ قَالَ لاَ يَحِلُّ لاِمْرِئٍ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ أَنْ يَسْقِيَ مَاءَهُ زَرْعَ غَيْرِهِ يَعْنِي إِتْيَانَ الْحَبَالَى وَلاَ يَحِلُّ لاِمْرِئٍ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ أَنْ يَقَعَ عَلَى امْرَأَةٍ مِنَ السَّبْىِ حَتَّى يَسْتَبْرِئَهَا وَلاَ يَحِلُّ لاِمْرِئٍ يُؤْمِنُ بِاللَّهِ وَالْيَوْمِ الآخِرِ أَنْ يَبِيعَ مَغْنَمًا حَتَّى يُقْسَمَ