Abu Salamah bin 'Abdur-Rahman (RA):
I asked 'Aishah (RA), "How much had Allah's Messenger (ﷺ) given as dowry?" She replied, "His dowry to his wives was twelve Uqiya and Nashsh." She asked, "Do you know what a an-Nashsh is?" I replied, "No." She said, "It is half an Uqiya. Hence, the total was five hundred Dirhams, and that was Allah's Messenger's (ﷺ) dowry to his wives."
[Reported by Muslim].