Sunan an-Nasa'i, Book 26, Hadith 152 (In-Book) ⓘ

It was narrated that Abu Salamah said: "I asked 'Aishah about that and she said: 'The Messenger of Allah got married (and married his daughters) for twelve Uqiyah and a Nashsh'" which is five hundred Dirhams.

أَخْبَرَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، قَالَ حَدَّثَنَا عَبْدُ الْعَزِيزِ بْنُ مُحَمَّدٍ، عَنْ يَزِيدَ بْنِ عَبْدِ اللَّهِ بْنِ الْهَادِ، عَنْ مُحَمَّدِ بْنِ إِبْرَاهِيمَ، عَنْ أَبِي سَلَمَةَ، قَالَ سَأَلْتُ عَائِشَةَ عَنْ ذَلِكَ، فَقَالَتْ فَعَلَ رَسُولُ اللَّهِ صلى الله عليه وسلم عَلَى اثْنَتَىْ عَشْرَةَ أُوقِيَّةً وَنَشٍّ وَذَلِكَ خَمْسُمِائَةِ دِرْهَمٍ ‏.‏