al-Qasim ibn Muhammad القاسم بن محمد بن أبي بكر الصديق · The Chapters on Marriage

that the Prophet said: “When anyone of you gets a new wife, a servant, or an animal, let him take hold of the forelock and say: Allahumma inni as`aluka min khayriha wa khayri ma jubilat 'alaihi, wa 'audhu bika min sharriha wa sharri ma jubilat `alaih (O Allah, I ask You for the goodness within her and the goodness that she is inclined towards, and I seek refuge with you from the evil to which she is inclined).' ”

“The Messenger of Allah said: “A man should not be married to a woman and her paternal aunt or maternal aunt at the same time.”

“Safiyyah was given to Dihyah Al-Kalbi (as his share of the war booty), then she was given to the Messenger of Allah after that. He married her, and made her ransom (i.e., freedom from slavery) her dowry.” (Sahih)Hammad said: “Abdul-'Aziz said to Thabit: 'O Abu Muhammad! Did you ask Anas what her bridal-money was?' He said: 'Her bridal-money was her freedom.' ”