Hadiths 7.21 to 7.23

7.21:
Narrated Abu Huraira: The Prophet said: Abraham did not tell
lies except three. (One of them was) when Abraham passed by a
tyrant and (his wife) Sara was accompanying him (Abu Huraira
then mentioned the whole narration and said:) (The tyrant)
gave her Hajar. Sara said, "Allah saved me from the hands of
the Kafir (i.e. infidel) and gave me Hajar to serve me." (Abu
Huraira added:) That (Hajar) is your mother, O Banu
Ma'−As−Sama' (i.e., the Arabs).

7.22:
Narrated Anas: The Prophet stayed for three days between Khaibar and Medina,
and there he consummated his marriage to Safiyya bint Huyai. I
invited the Muslims to the wedding banquet in which neither
meat nor bread was offered. He ordered for leather
dining−sheets to be spread, and dates, dried yoghurt and
butter were laid on it, and that was the Prophet's wedding
banquet. The Muslims wondered, "Is she (Saffiyya) considered
as his wife or his slave girl?" Then they said, "If he orders
her to veil herself, she will be one of the mothers of the
Believers; but if he does not order her to veil herself, she
will be a slave girl. So when the Prophet proceeded from
there, he spared her a space behind him (on his she−camel) and
put a screening veil between her and the people.

7.23:
Narrated Anas bin Malik: Allah's Apostle manumitted Safiyya
and regarded her manumission as her Mahr.