It is narrated from Qabeesah bin Dhu’ayb that a man asked Sayyiduna Uthman bin Affan (may Allah be pleased with him) whether it is permissible to keep two sisters as slave women under one’s ownership. Sayyiduna Uthman (may Allah be pleased with him) replied: According to one verse, it is permissible, and according to another verse, it is not permissible, but I do not like it. Then that man went away and met another companion, and asked him the same question. He said: If I were the ruler and saw someone doing this, I would give him a severe punishment. Ibn Shihab said: I think that companion was Sayyiduna Ali (may Allah be pleased with him).