Usually no, but it depends on the device you’re pairing. You can pair the device from anywhere within its operating range which is approximately 25 to 100 feet, depending on the obstructions.
However there are some Devices like most door locks which will require you to bring the Controller very close to the Device, say within a 3-foot (1-meter) range, to do the pairing. This arrangement is for extra security. The Device will work with the normal range once it is paired. Apart from this, Vera controllers additionally offer a battery power option to accommodate this occasional requirement.