Two men who form a partnership, one bringing dinars and the other dirhams

Al-Hasan said: If two men wish to enter a partnership, there is no harm in one bringing dinars and the other dirhams. He said: The dinars are all 'ayn (ready money). Then, when they wish to separate, the owner of the dinars takes dinars and the owner of the dirhams takes dirhams, and then they divide whatever profit there is. Muhammad Ibn Sirin (may Allah have mercy on him) used to prefer that it be dirhams with dirhams and dinars with dinars.

Hisham said: Muhammad (Ibn Sirin) used to prefer that it be dirhams with dirhams and dinars with dinars.