ضرب

مُضَارِبٌ ذ One who is employed by another to traffic for him with his ( the latter's ) property, on the condition of their sharing the gain together: and also one who employs another to traffic for him with his ( the former's ) property, on that condition: thus expl. by En-Nadr; and Az also allows the use of the word in these two senses. (TA.)