A cubit devised by the second caliph, ‘Umar b. al-Khattab (13–23 AH), to measure lands of Sawad. It measured a cubit (prevalent) plus a grip of clasped hand and a thumb.
Al-tijarah al-hadirah
Al-tarij
Ahira al-ammah
Al-taraf
Al-kafaf
Al-bai al-qati
Al-‘arif
Al-musaqqafah
Al-ihsan
Al-katib
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