It is narrated from Abd al-Malik bin Zayd bin Abdullah bin Sa'id bin Zayd that the lineage of Sayyiduna Sa'id bin Zayd bin Amr bin Nufayl bin Abd al-Uzza bin Riyah bin Razah bin Adi bin Ka'b bin Lu'ayy is such that Amr bin Nufayl and al-Khattab bin Nufayl, the father of Umar (may Allah be pleased with him), were brothers through the father.

It is narrated from Urwah (may Allah have mercy on him) that Sayyiduna Sa'id bin Zayd bin Amr bin Nufayl (may Allah be pleased with him) returned from Syria after the Messenger of Allah (peace and blessings be upon him) had returned from the Battle of Badr. He spoke to the Messenger of Allah (peace and blessings be upon him) (about his participation), and he (peace and blessings be upon him) allotted him a share (of the spoils). He said: O Messenger of Allah! Will I have my reward as well? He (peace and blessings be upon him) said: "And your reward as well."

It is narrated from Ibn Ishaq, in the naming of the Companions from Banu Adi bin Ka'b who took part in the Battle of Badr with the Messenger of Allah (peace and blessings be upon him), that Sayyiduna Sa'id bin Zayd bin Amr bin Nufayl (may Allah be pleased with him) was among them. His mother was Fatimah bint Ba'jah, from Khuza'ah. He came from Syria after the Messenger of Allah (peace and blessings be upon him) had returned from Badr, and he (peace and blessings be upon him) allotted him a share. He said: O Messenger of Allah! Will I have my reward as well? He (peace and blessings be upon him) said: "And your reward as well."

It is narrated from Zayd bin Aslam that the kunyah of Sayyiduna Sa'id bin Zayd bin Amr bin Nufayl (may Allah be pleased with him) was "Abu al-A'war".