Complex sentence: Zayd was a slave in Khadijah's household for several years, and when his father came to Mecca to bring him home, Muhammad protested and said Zayd should be given a choice about where he lived.
Split into simpler sentences: Zayd was a slave in Khadija's household for several years, until his father came to Mecca to bring him home. Muhammad said Zayd should be given a choice about where he lived.