Compatibility in marriage

Sayyiduna Umar bin al-Khattab (may Allah be pleased with him) said: Nothing of the habits of the Jahiliyyah remains in me; indeed, I do not care which Muslim I marry or to which Muslim I give in marriage.

Sayyiduna Umar (may Allah be pleased with him) forbade that an Arab should marry a slave woman.

Muhammad bin Abdullah bin Kathir bin al-Salt (may Allah have mercy on him) said: A freed slave (mawla) of ours married an Arab woman, and a complaint against him was brought to Umar bin Abd al-Aziz (may Allah have mercy on him). He said: "By Allah, the mawla of the family of Kathir has overstepped his bounds."

Sayyiduna Umar (may Allah be pleased with him) said: I shall certainly prevent women of noble lineage from marrying anyone except their equals.

Amr bin Abi Qurrah al-Kindi (may Allah have mercy on him) said: My father asked Sayyiduna Salman (may Allah be pleased with him) to marry his sister. He refused, and married a freed slave woman (mawlah) of his own named Buqayrah.

Sayyiduna Salman (may Allah be pleased with him) said: We will neither lead them in prayer nor marry their women.

Ibn Shihab (may Allah have mercy on him) said: An Arab and a freed slave (mawla) cannot be equal in lineage.

Hasan (may Allah have mercy on him) said: I asked Ibn Abi Layla (may Allah have mercy on him) about equality (kafa'ah) in marriage, and he said: Equality is in religion and in status. I asked: Is it in wealth? He said: No.