While I was riding behind the Prophet (ﷺ) and between me and him and between me and him there was only the back of the saddle, he said, "0 Mu`adh!" I replied, "Labbaik, 0 Allah's Messenger (ﷺ), and Sa`daik!" he said, "Do you know what is Allah's right upon his slave?" I said, "Allah and His Apostle know best" He said "Allah's right upon his slaves is that they should worship Him alone and not worship anything else besides Him."…