Anas said that Abu Talha married Umm Sulaim, the dower between them being acceptance of Islam. Umm Sulaim had become a Muslim before Abu Talha, and when he asked her in marriage she said, "I have become a Muslim, so if you become one I shall marry you.” He then accepted Islam and that was the dower arranged between them.
Umm Habiba said she was married to ‘Abdallah b. Jahsh who died in Abyssinia, so the Negus married her to the Prophet, giving her on his behalf a dower of four thousand. (A version has four thousand dirhams.) He sent her to God’s Messenger with Shurahbil b. Hasana.
Anas said the Prophet saw the trace of yellow on ‘Abd ar-Rahman b. ‘Auf and asked what that was. He replied, “I have married a woman for a nawat* weight of gold.” He said, “God bless you! Hold a wedding- feast, even if only with a sheep.”
*a weight of five dirhams.
‘Alqama quoted Ibn Mas'ud as saying he was asked about a man who had married a woman without fixing any settlement on her or cohabiting with her till he died. Ibn Mas'ud said she should receive the type of dower given to women of her class with so diminution or excess, observe the ‘idda period and have her share of the inheritance. Ma'qil b. Sinan al-Ashja‘i then got up and said, "God’s Messenger gave a decision regarding Birwa’ daughter of Washiq, a woman of our tribe, to the same effect as the decision you have given; and Ibn Mas'ud was pleased about the decision.
Tirmidhi, Abu Dawud, Nasa'i and Darimi transmitted it.