It is narrated from Muhammad bin Ishaq that among the Companions of the Messenger of Allah (peace and blessings be upon him) who emigrated from Makkah to Abyssinia was Khalid bin Sa'id bin al-As of Banu Umayyah. His wife was with him, and she bore him his son Sa'id bin Khalid in the land of Abyssinia.

Khalifah bin Khayyat relates that the mother of Sayyiduna Khalid bin Sa'id bin al-As was Lubaynah, known as Umm Khalid, the daughter of Khabbab bin Abd Yalil bin Nashib bin Ghiyarah bin Sa'd bin Layth bin Bakr bin Abd Manah bin Ali bin Kinanah bin Khuzaymah.

The acceptance of Islam by Sayyiduna Khalid bin Sa'id (may Allah be pleased with him) was very early, and he was the first of his brothers to become Muslim. His Islam began in this way: he saw in a dream that he was standing at the edge of a huge pit of fire (whose vastness Allah alone knows best), and he saw in the dream as though his father was pushing him into that fire, while the Messenger of Allah (peace and blessings be upon him) had taken hold of him by the waist so that he would not fall. He woke up in alarm and said: By Allah! This is certainly a true dream. Then he met Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) and related his dream, and Abu Bakr (may Allah be pleased with him) said: Good has been intended for you. This is the Messenger of Allah (peace and blessings be upon him), so follow him. You will surely follow him and enter Islam with him, and Islam will save you from falling into the fire, whereas your father is going to fall into it. So he met the Messenger of Allah (peace and blessings be upon him) at Ajyad and asked: O Muhammad (peace and blessings be upon him)! To what do you call? He (peace and blessings be upon him) said: "I call to Allah, alone, without partner, and to the testimony that Muhammad is His servant and Messenger, and that you abandon the worship of stones that can neither harm nor benefit, and which do not even know who worships them and who does not." Khalid said: I bear witness that there is no god but Allah, and I bear witness that you are the Messenger of Allah. The Messenger of Allah (peace and blessings be upon him) was very pleased at his acceptance of Islam. Then Khalid went into hiding. When his father Abu Uhayhah learned of his acceptance of Islam, he sent those of his sons who had not yet accepted Islam, along with his slave Rafi', to search for him. When they found him, he was brought to his father, who rebuked him harshly, reproached him, and struck him on the head with a stick he had in his hand so hard that it broke. Then he said: You have followed Muhammad even though you see that he opposes his people, and that he has found fault with our gods and our forefathers? Khalid said: By Allah! He has spoken the truth, and I have followed him. At this his father became angry, reviled him and cursed him, then said: Go wherever you please, you fool! By Allah, I will cut off your food and drink. Khalid replied: If you cut off my provision, then Allah, the Mighty and Majestic, will surely provide me with what I need to live on. So he turned him out and said to his sons: Whoever among you speaks to him, I will do to him what I have done to this one. So Khalid went to the Messenger of Allah (peace and blessings be upon him), who (peace and blessings be upon him) used to honour him, and he remained with him (peace and blessings be upon him).

It is narrated from Sayyiduna Khalid bin Sa'id (may Allah be pleased with him) that (his father) Sa'id bin al-As bin Umayyah fell ill and said: If Allah raises me up from this illness, I will not allow the God of "Ibn Abi Kabshah" (Muhammad (peace and blessings be upon him)) to be worshipped in the valley of Makkah. At that, Khalid bin Sa'id (out of the zeal of faith) made this supplication: "O Allah, do not raise him up from this illness (i.e. do not cure him)." As for the account of the death of Khalid bin Sa'id and his kunyah:

Khalifah bin Khayyat relates that Sayyiduna Khalid bin Sa'id bin al-As (may Allah be pleased with him) was martyred at the Battle of Marj al-Suffar. This took place in the year 13 AH, and when the Messenger of Allah (peace and blessings be upon him) passed away, he was serving as his (peace and blessings be upon him) governor in Yemen.

Khalid bin Sa'id bin Amr bin Sa'id narrates from his father (Sa'id bin Amr) that when news of the passing of the Messenger of Allah (peace and blessings be upon him) reached his uncles Khalid, Aban and Amr (the sons of Sa'id bin al-As), they left their posts and came back. Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) said to them: "No one is more entitled to these posts than the governors appointed by the Messenger of Allah (peace and blessings be upon him); go back to your duties." But they replied: "We will not serve as governors for anyone after the Messenger of Allah (peace and blessings be upon him)." So they set out for Syria for jihad, and all of them were martyred there.

It is narrated from Abu al-Yaqzan and others that Sayyiduna Khalid bin Sa'id bin al-As (may Allah be pleased with him) accepted Islam before Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him). (Imam al-Hakim says:) This is an error on the part of whoever said it, for I have already presented the narration that it was Sayyiduna Abu Bakr al-Siddiq (may Allah be pleased with him) who invited him to Islam, as a result of which he believed.

Muhammad bin Abdullah bin Abi Bakr narrates from his father that the Messenger of Allah (peace and blessings be upon him) had appointed Sayyiduna Khalid bin Sa'id (may Allah be pleased with him) as governor of Yemen. He arrived in Madinah after his (peace and blessings be upon him) passing and held back from giving the pledge of allegiance for two months, saying: "The Messenger of Allah (peace and blessings be upon him) appointed me as commander, and he (peace and blessings be upon him) did not dismiss me until Allah, the Mighty and Majestic, took his soul." He met Sayyiduna Ali bin Abi Talib and Sayyiduna Uthman bin Affan (may Allah be pleased with them both) and said: "O Banu Abd Manaf! Have you willingly given up your leadership, so that someone else now takes charge of it?" The narrator says: Sayyiduna Abu Bakr (may Allah be pleased with him) paid no attention to this remark of his, but it continued to rankle in the heart of Sayyiduna Umar (may Allah be pleased with him). Then, when Sayyiduna Abu Bakr (may Allah be pleased with him) sent the armies to Syria, the first person he appointed as commander over a quarter of the army was Khalid bin Sa'id. Sayyiduna Umar (may Allah be pleased with him) began saying: "Are you making him a commander, when what he did and said is before you?!" He kept on persuading Sayyiduna Abu Bakr (may Allah be pleased with him) until he dismissed Khalid and appointed Yazid bin Abi Sufyan as commander. This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs did not record it.

Ahmad bin Sayyar relates that Sa'id, the father of Khalid bin Sa'id bin al-As, had twenty sons and twenty daughters. As for al-As bin Sa'id, the Commander of the Faithful Ali bin Abi Talib (may Allah be pleased with him) killed him as a polytheist on the day of Badr; and as for Khalid bin Sa'id, he was martyred at Marj al-Suffar in Muharram, 14 AH, during the caliphate of Sayyiduna Umar bin al-Khattab (may Allah be pleased with him).

It is narrated from Sayyiduna Khalid bin Sa'id bin al-As (may Allah be pleased with him) that he came to the Prophet (peace and blessings be upon him) while there was a ring on his hand. The Prophet (peace and blessings be upon him) asked: "What is this ring?" He said: "It is a ring I had made." He (peace and blessings be upon him) said: "Throw it away." So I threw it to him, and it was a ring of iron. Then the Prophet (peace and blessings be upon him) asked: "What is engraved on it?" I said: 'Muhammadun Rasulullah' (Muhammad is the Messenger of Allah). So the Prophet (peace and blessings be upon him) took it and wore it until his death; it was the very ring that used to be on his (peace and blessings be upon him) blessed hand. This hadith has a sahih (authentic) chain, but the two Shaykhs (Bukhari and Muslim) did not record it.