Abu Salamah (may Allah have mercy on him) said: I asked Sayyidah Aishah (may Allah be pleased with her): How much dower did the Prophet (peace and blessings be upon him) give? She said: The Prophet (peace and blessings be upon him) gave his wives a dower of only 12 uqiyah and a nashsh. She asked: Do you know what is meant by nashsh? I said: No. She said: Half an uqiyah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الصداق / 14344