What is the ruling on borrowing from the proceeds of sales in a store owned by the borrower with partners?

It is not permissible for a partner to borrow from the company, for himself or for others, except with the consent of his partner, because borrowing affects the company. Borrowing is not permissible unless he seeks permission from his partner, or if custom dictates it within the limits of what is customarily allowed. The best and most cautious approach is explicit permission from the partner.