What is the ruling on saying: "Muhammad, I feel that you are from the light of Al-Kawthar, and the light of the heavens, and more"?

The phrase "I feel you are made of the light of al-Kawthar and the light of the sky" is an exaggeration in simile. It is hoped that there is no harm in using it when coddling a child, because it is a way of showing love and attachment to them. As for the phrase "or more," it is considered an excessive exaggeration and might lead to lying, because the slightest thing in Paradise is better than the world and everything in it. So how could a child's beauty be more than al-Kawthar?