الخبير
كلمةُ (الخبير) في اللغةِ صفة مشبَّهة، مشتقة من الفعل (خبَرَ)،...
The distance that takes one day or night to be covered by someone walking or riding a loaded animal, equivalent to twenty-four miles (around 44,352 meters).
"Marhalah" is an old Arabic unit for measuring distance. It is equivalent to the distance covered in one whole day or one whole night by a traveler who walks or rides an animal, at the usual moderate speed, including the time for prayers, meals, etc. One "marhalah" consists of two "bareed"". Each "bareed" equals four "farsakh" (parasang). Each "farsakh" equals three miles. Each mile equals 1,680 meters. So, one "marhalah" is equivalent to twenty-four miles (44,520 meters). Covering two marhalahs allows the traveler to take advantage of the Shariah concessions for traveling, such as shortening prayers.
"Marhalah": the distance covered by a pedestrian in one day or so. It also means a limited amount, or a point between two other stages. ""Marhalah"" is derived from "irtihāl,"" which means traveling from one place to another.
The journey covered in one day, using loaded camels. It is estimated at twenty-four Hāshimī miles, or eight farsakhs, or 44.352 Kilometres.