Is it permissible to kill bees for medicinal purposes, knowing that the Messenger of Allah, peace and blessings be upon him, forbade killing them, and that the bee dies after stinging?

The Messenger of Allah, peace and blessings be upon him, forbade killing bees. Therefore, it is not permissible to kill them or other animals that are forbidden to kill, except for a legitimate purpose, such as repelling harm or achieving a benefit. If killing bees becomes necessary for treating an illness and no alternative is available, then there is no legal impediment, as it is permissible to use animals for legitimate purposes like food and treatment.