The ruling on buying used shoes by weight

Question:
May Allah reward you with good and do you good. A listener who did not mention his name in this message asks and says: I am a dealer in used shoes, and I buy these shoes by weight. What is the ruling on this method of selling, and are there specific limits for lawful profit? Please help us. May Allah reward you with good.

Answer:
The means of lawful earnings are many, and praise be to Allah. The default in transactions, buying, and selling is permissibility, except for what evidence indicates is prohibited, such as deception, fraud, riba (usury or interest), and other matters that are forbidden.
As for selling shoes by weight, this is not known. Shoes are sold either individually or in bulk; that is what is known. Unless by weight it is meant that the shoes are in tied boxes and this total is weighed. If custom has established this and it is regulated, there is no harm. But I think this is not known among people; rather, what is known is selling individually or in bulk. Yes.