Complex sentence: After the Muslims executed the male members of the Banu Qurayza tribe, the women and children were taken as slaves, Muhammad himself took Rayhana as his slave.
Split into simpler sentences: After the Muslims executed the male members of the Banu Qurayza tribe, the women and children were taken as slaves. Vol.3, Ch.17, p.276 (citing Hishami, 436) Muhammad himself took Rayhana as his slave.