From Slavery to Adopted Son
Zayd was kidnapped in a tribal raid as a young boy from the Kalb tribe and sold at the market in Ukaz. Hakim ibn Hizam (Khadijah’s nephew) purchased him and gave him to Khadijah, who presented him to her future husband Muhammad.
When Zayd’s father Haritha finally located his son after years of searching, he arrived in Mecca ready to pay any ransom. Muhammad gave Zayd the choice: return with his father or remain with Muhammad. Zayd chose Muhammad — a decision that shocked his father but deeply moved Muhammad, who immediately freed him and brought him before the Ka’ba to declare him his son. Zayd was known as Zayd ibn Muhammad for years.
The Quranic Reform: Abolishing Adoptive Lineage (33:4-5, 33:37)
Surah al-Ahzab contained a dual directive:
The lineage reform (33:4-5): “Allah has not made for a man two hearts in his interior. And He has not made your wives whom you declare unlawful your mothers. And He has not made your adopted sons your sons. That is [merely] your saying by your mouths, but Allah says the truth, and He guides to the [right] path. Call them after their [biological] fathers…”
This abolished the pre-Islamic practice (tabanni) of treating adopted children as biological sons with full inheritance rights and lineage transfer. The reform affected Zayd most directly — his name reverted to Zayd ibn Haritha.
His Quranic mention (33:37): The verse addressing Zayd’s divorce from Zaynab bint Jahsh (the Prophet’s cousin, whom Zayd married at the Prophet’s suggestion) is the only verse in the Quran that names a companion.
Commander at Mu’ta (8 AH / 629 CE)
The Prophet appointed Zayd as the primary commander of the expedition to Mu’ta in Byzantine-controlled territory. When Zayd fell holding the banner, Ja’far ibn Abi Talib took it. When Ja’far fell, Abdullah ibn Rawaha took it. After his fall, Khalid ibn al-Walid took command and executed a masterful strategic withdrawal. The Prophet wept publicly at news of Zayd’s death, and said of him: “Ask forgiveness for Zayd — truly he was one who loved Allah and His Messenger.”
See also: Sahaba, Seerah Khalid, Seerah Battle Muta, Seerah Khadijah, Al Ahzab, Ahl Al Bayt