Sunan Abu Dawud
1615
Sahih+3

Abd’ Allah(b. 'Umar) said “The people then began to pay half a sa’ of wheat later on. The narrator said :'Abd Allah (b. Umar) use to pay dried dates as sadaqah one year the people of Medina lacked dried dates, hence he paid barley

SahihAl-Albani
SahihMuhammad Muhyi Al-Din Abdul Hamid