From the sidebar of your hub, select Apps and press the Add Built-In App button.
Choose Bond Integration from the list of built-in apps.
Follow the instructions under Add Bond Devices to add a Bond device to your Hubitat Elevation hub. Note that the Bond device must already be set up on your Wi-Fi network using the Bond app on your mobile device; the device can only be added to Hubitat after it is already set up in the Bond mobile app and connected to your network.