"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."  

أَنَّ عَبْدَ اللَّهِ بْنَ عُمَرَ كَانَ يَقُولُ نَهَى رَسُولُ اللَّهِ ﷺ أَنْ يَبِيعَ بَعْضُكُمْ عَلَى بَيْعِ بَعْضٍ وَلاَ يَخْطُبُ الرَّجُلُ عَلَى خِطْبَةِ الرَّجُلِ حَتَّى يَتْرُكَ الْخَاطِبُ قَبْلَهُ أَوْ يَأْذَنَ لَهُ الْخَاطِبُ  

"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.  

طَلَّقَنِي زَوْجِي ثَلاَثًا فَكَانَ يَرْزُقُنِي طَعَامًا فِيهِ شَىْءٌ فَقُلْتُ وَاللَّهِ لَئِنْ كَانَتْ لِي النَّفَقَةُ وَالسُّكْنَى لأَطْلُبَنَّهَا وَلاَ أَقْبَلُ هَذَا فَقَالَ الْوَكِيلُ لَيْسَ لَكِ سُكْنَى وَلاَ نَفَقَةٌ قَالَتْ فَأَتَيْتُ النَّبِيَّ ﷺ فَذَكَرْتُ ذَلِكَ لَهُ فَقَالَ لَيْسَ لَكِ سُكْنَى وَلاَ نَفَقَةٌ فَاعْتَدِّي عِنْدَ فُلاَنَةَ قَالَتْ وَكَانَ يَأْتِيهَا أَصْحَابُهُ ثُمَّ قَالَ اعْتَدِّي عِنْدَ ابْنِ أُمِّ مَكْتُومٍ فَإِنَّهُ أَعْمَى فَإِذَا حَلَلْتِ فَآذِنِينِي قَالَتْ فَلَمَّا حَلَلْتُ آذَنْتُهُ فَقَالَ رَسُولُ اللَّهِ ﷺ وَمَنْ خَطَبَكِ فَقُلْتُ مُعَاوِيَةُ وَرَجُلٌ آخَرُ مِنْ قُرَيْشٍ فَقَالَ النَّبِيُّ ﷺ أَمَّا مُعَاوِيَةُ فَإِنَّهُ غُلاَمٌ مِنْ غِلْمَانِ قُرَيْشٍ لاَ شَىْءَ لَهُ وَأَمَّا الآخَرُ فَإِنَّهُ صَاحِبُ شَرٍّ لاَ خَيْرَ فِيهِ وَلَكِنِ انْكِحِي أُسَامَةَ بْنَ زَيْدٍ قَالَتْ فَكَرِهْتُهُ فَقَالَ لَهَا ذَلِكَ ثَلاَثَ مَرَّاتٍ فَنَكَحَتْهُ