The maxwell's equation:

$\oint \overrightarrow{B}.\overrightarrow{dl}={\mu }_0\left(i+{\epsilon }_0.\frac{d{\varphi }_E}{dt}\right)$ is a statement of :

The figure shows a parallel plate capacitor being charged by a battery. If X and Y are two closed curves then during charging, $\oint \overrightarrow{B}.d\overrightarrow{l}$ is zero along the curve: