What is the ruling on selling live chickens by weight and selling vinegar that contains 6% alcohol?

Firstly: It is permissible to buy chicken by weight.

Secondly: If a large quantity of vinegar intoxicates, then a small quantity of it is forbidden, and its ruling is the same as that of wine, due to the saying of the Prophet, peace and blessings be upon him: "Whatever intoxicates in large quantities, a small quantity of it is forbidden." If a large quantity of it does not intoxicate, then there is no harm in it.