What is the ruling on selling televisions, recorders, and radios, knowing that the seller sells a device and the buyer determines its use?

The permissibility or prohibition of selling devices is not inherent in the devices themselves; rather, the ruling depends on the type of use. If it is known that the buyer will use the device for an unlawful purpose, then selling it is prohibited, because it is considered assisting those who commit evil, and the means to corruption are forbidden. However, if it is known that it will be used for a lawful purpose, then selling it is permissible. If the user's intent is unknown, then one looks at what is common among people: if the predominant use is unlawful, then selling it is prohibited.