Scratching is a natural behavior for cats, and it helps them mark their territory, remove the dead outer layer of their claws, and stretch their muscles. It’s important to redirect your cat’s scratching behavior rather than trying to stop it completely. Here are a few tips to help train your Bengal cat to scratch appropriate surfaces:

1. Provide your cat with a scratching post or pad. Choose a post that is tall enough for your cat to stretch out fully and sturdy enough to support your cat’s weight. Place the post near the furniture that your cat likes to scratch.
2. Encourage your cat to use the scratching post or pad. You can do this by rubbing catnip on it or by playing with your cat near the post.
3. Reward your cat for using the scratching post or pad. Whenever you see your cat scratching the post or pad, give your cat lots of praise and treats.
4. Protect your furniture. If your cat continues to scratch the furniture, you may need to protect it with double-sided tape or plastic covers. You can also try using a spray-on deterrent, such as a mixture of water and lemon juice.
5. Trim your cat’s claws regularly. This can help reduce the damage that your cat’s claws can cause.

It may take some time and patience, but with consistent training and positive reinforcement, you can help your Bengal cat learn to scratch appropriate surfaces.