Does the partner receive a quarter of the shop's entire profits, or only a quarter of the profits generated by his capital, if the second partner acquires capital in the shop one year after the initial agreement?

Mudarabah (Qirad) is a contract sanctioned by the consensus of Muslims. It serves the interest of the capital owner who is not skilled in managing funds, and the worker who lacks capital. The profit is to be shared between them according to a known percentage.

As for the worker owning a portion of the capital after a period, the worker does not own a fixed share of the profits until the funds are divided, liquidated, and fully handed over to their owner.