Narrated Sahl:

A woman came to the Prophet and said, "I have come to present myself to you (for marriage)." She kept standing for a long period during which period the Prophet looked at her carefully. When she stayed for a Long period, a man said to the Prophet "If you are not in need of her, then marry her to me." The Prophet ﷺ said, "Have you got anything to give her (as Mahr)?" The man said, "No." The Prophet ﷺ said, "Go (to your house) and search for something." The man went and came back to say, "By Allah, I could not find anything." The Prophet ﷺ said, "Go again and search for something, even if it be an iron ring." He went again and came back saying, "No, by Allah, I could not get even an iron ring." The man had only an Izar and had no Rida' (upper garment). He said, "I will give her my Izar as Mahr." On that the Prophet ﷺ said, "Your Izar? If she wears it, nothing of it will remain on you, and if you wear it nothing of it will be on her" The man went aside and sat down When the Prophet saw him leaving (after a while), he called back and asked. "How much Qur'an do you know (by heart)? He said, 'I know such and such Suras," naming some Suras. The Prophet ﷺ said, "I marry her to you for the amount of Qur'an you know (by heart)."

حَدَّثَنَا عَبْدُ اللَّهِ بْنُ مَسْلَمَةَ، حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ أَبِي حَازِمٍ، عَنْ أَبِيهِ، أَنَّهُ سَمِعَ سَهْلاً، يَقُولُ جَاءَتِ امْرَأَةٌ إِلَى النَّبِيِّ ﷺ فَقَالَتْ جِئْتُ أَهَبُ نَفْسِي. فَقَامَتْ طَوِيلاً فَنَظَرَ وَصَوَّبَ، فَلَمَّا طَالَ مُقَامُهَا فَقَالَ رَجُلٌ زَوِّجْنِيهَا، إِنْ لَمْ تَكُنْ لَكَ بِهَا حَاجَةٌ. قَالَ " عِنْدَكَ شَىْءٌ تُصْدِقُهَا ". قَالَ لاَ. قَالَ " انْظُرْ ". فَذَهَبَ ثُمَّ رَجَعَ فَقَالَ وَاللَّهِ إِنْ وَجَدْتُ شَيْئًا. قَالَ " اذْهَبْ فَالْتَمِسْ وَلَوْ خَاتَمًا مِنْ حَدِيدٍ ". فَذَهَبَ ثُمَّ رَجَعَ قَالَ لاَ وَاللَّهِ وَلاَ خَاتَمًا مِنْ حَدِيدٍ. وَعَلَيْهِ إِزَارٌ مَا عَلَيْهِ رِدَاءٌ. فَقَالَ أُصْدِقُهَا إِزَارِي فَقَالَ النَّبِيُّ ﷺ " إِزَارُكَ إِنْ لَبِسَتْهُ لَمْ يَكُنْ عَلَيْكَ مِنْهُ شَىْءٌ، وَإِنْ لَبِسْتَهُ لَمَ يَكُنْ عَلَيْهَا مِنْهُ شَىْءٌ ". فَتَنَحَّى الرَّجُلُ فَجَلَسَ فَرَآهُ النَّبِيُّ ﷺ مُوَلِّيًا فَأَمَرَ بِهِ فَدُعِيَ فَقَالَ " مَا مَعَكَ مِنَ الْقُرْآنِ ". قَالَ سُورَةُ كَذَا وَكَذَا لِسُوَرٍ عَدَّدَهَا. قَالَ " قَدْ مَلَّكْتُكَهَا بِمَا مَعَكَ مِنَ الْقُرْآنِ ".