You can't stop it,but you may use backup codes instead of it.
While signing into your samsung account you will be asked for verification code after entering password, down there you will find 'verify with backup code' option. Click on that and enter a backup code. (You can use a code only once)
These backup codes are helpful if you don't have your samsung device with you on time.
These backup codes are helpful if you don't have your samsung device with you on time.
