Is a partnership valid when one party agrees to manage ('aqabala) and the other party agrees to work, with the wage to be split between them?

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The partnership is valid in this arrangement. This is because undertaking the guarantee (daman) in the work entitles the managing party to a share of the profit. This is analogous to the partnership of bodies (shirkat al-abdān). The acceptance of work imposes liability (daman) upon the one who accepts the work, thereby granting him the right to profit. This situation descends to the level of a *Mudarabah* (profit-sharing partnership), where the work performed by the laborer entitles him to a profit share, similar to the laborer in a Mudarabah.