Abu Hanzalah bin Nu'aym (may Allah have mercy on him) said: Sayyiduna Sa'd (may Allah be pleased with him) wrote to Sayyiduna Umar (may Allah be pleased with him): We have taken possession of a region without fighting. What should we do now? Sayyiduna Umar (may Allah be pleased with him) wrote back to him in reply: If you people wish to divide this region among yourselves, then divide it. And if you wish, leave this region; its inhabitants will cultivate it themselves, and whoever joins you afterwards will have a share in this region. For I fear that you will try to get ahead of one another in this matter and in the turns of water, and then some of you will kill others. Sayyiduna Sa'd (may Allah be pleased with him) wrote to him and said: All the Muslims have agreed that their opinion follows your opinion. Sayyiduna Umar (may Allah be pleased with him) then wrote to him again and said: These people should return the slaves, except for a woman who has become pregnant by a man among the Muslims.