This is a complete nonsense.
First Al Khalid do not have telescope sight, it have only electronic periscope sight, no auxiliairy sight that when installed, is exactly simple telescope sight.
Besides this, if You have a thermal sight, why the hell You want a less capable night vision sight that will take additional space? Nobody do this, unless NV is for commander instead of thermal, but this means that it have limited H-K capability in night due to limited range and target detection/identification at night and in bad atmosferic conditions. Then it's might be true, Al Khalid commander panoramic sights, seems to be too small to have inside thermal camera. If we compare it's size with all tanks that have panoramic sight with thermal camera, we can see that they are more bulky. So IMHO tank commander in Al Khalid have only day channel + simple night vision channel instead of thermal sight.