Abu Hazim, Salma bin Dinar سلمة بن دينار أبو حازم الأعرج · The Book of Marriage

It was narrated from 'Amr bin Shu'aib, from his father, from his grandfather, that Marthad bin Abi Marthad Al-Ghanawi --a strong man who used to take the prisoners from Makkah to Al-Madinah-- said: "I arranged with a man to bring him (from Makkah to Al-Madinah). There was a prostitute in Makkah who was called 'Anaq, and she was his friend. She came out and saw my shadow on the wall, and said: 'Who is this? Marthad? Welcome, O Marthad, come…

It was narrated from Abu Hurairah that the Prophet said: "None of you should propose marriage to a woman when someone else has already proposed to her."

"None of you should propose marriage to a woman when someone else has already proposed to her, unless he marries (and he gives up the idea), or gives him permission."

It was narrated from Ibn 'Abbas that the Messenger of Allah married Maimunah when he was a Muhrim.

"The Messenger of Allah said: 'Whatever is given as a dowry, or gift or is promised her before the marriage belongs to her. Whatever is given after the marriage belongs to the one to whom it was given. And the most deserving for which a (man) is to be honored is (when marrying off) his daughter or sister.'" This is the wording of 'Abdullah (one of the narrators).