´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.
Hadith ReferenceSunan an-Nasa'i / The Book of Marriage / Hadith: 3349
Hadith Gradingالألبانی:صحيح | زبیر علی زئی:صحيح مسلم