How to Redirect Previous page in laravel after session logout?

Where can i write its logic in my file ? below are my login function.

public function login( Request $request ) 
{ 
    $this->validate( $request, [
        'email' => 'required|email',
        'password' => 'required',
    ]);

    if( Auth::guard('employee')->attempt( [
        'email' => $request->input( 'email' ),
        'password' => $request->input( 'password' ),
        'status'=>'Active'
    ]) ) {  
        return redirect('/employee/dashboard');
    } else {
        return view('employee.login')->withErrors( [ 'email' => 'Authentication failed' ] );
    }
}

via Chebli Mohamed