The Messenger of Allah forbade offering more for something that has already been bought by his brother, or for a man to propose marriage to a woman when someone else has already proposed to her, unless the previous suitor gave up the idea or gave him permission.

:Telah mengabarkan kepada kami Ubaidullah bin Sa'id ia berkata; telah menceritakan kepada kami Yahya ia berkata; telah menceritakan kepada kami Hisyam ia berkata; telah menceritakan kepada kami Muhammad dari Abu Hurairah dari Nabi shallallahu 'alaihi wasallam beliau bersabda: Tidak boleh seorang wanita dinikahi sebagai madu bagi saudara wanita ayahnya dan tidak pula sebagai madu saudara wanita ibunya.

My husband divorced me three times, and he used to provide me with food that was not good. She said: By Allah, if I were entitled to maintenance and accommodation I would demand them and I would not accept this. The deputy said: You are not entitled to accommodation or maintenance. She said: I came to the Prophet and told him about that, and he said: 'You are not entitled to accommodation nor maintenance; observe your 'Iddah in the house of so-and-so.' She said: 'His Companions used to go to her.' Then he said: 'Observe your 'Iddah in the house of Ibn Umm Maktum, who is blind, and when your 'Iddah is over, let me know.' She said: When my 'Iddah was over, I let him know. The Messenger of Allah said: 'Who has proposed marriage to you?' I said: 'Mu'awiyah and another man from the Quraish.' He said: 'As for Mu'awiyah, he is a boy among the Quraish and does not have anything, and as for the other he is a bad man with no goodness in him. Rather you should marry Usamah bin Zaid.' She said: I did not like the idea. But he said that to her three times so she married him.

:Telah mengabarkan kepada kami Ishaq bin Ibrahim ia berkata; telah memberitakan kepada kami Al Mu'tamir dari Daud bin Abi Hindun dari Asy Sya'bi dari Abu Hurairah ia berkata; Rasulullah shallallahu 'alaihi wasallam melarang seorang wanita dinikahi sebagai madu bagi saudara wanita ayahnya dan saudara wanita ayahnya sebagai madu bagi anak wanita saudara laki-lakinya.