Is the purchase of a female slave (jariya) for personal use by the managing partner (Mudarib) permissible from partnership funds?

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If the capital provider authorizes the managing partner to purchase from the partnership funds, and the managing partner buys a female slave for personal concubinage, the price is debited from the partnership funds and becomes a personal debt (qard) upon the managing partner. This is because the permissibility of marital relations (al-bud'u) is only established through legal ownership, based on the statement of Allah Almighty: "except from their spouses or those whom their right hands possess" (Quran 23:6).