Narrated Mu`adh bin Jabal: While I was riding behind the Prophet as a companion rider and there was nothing between me and him except the back of the saddle, he said, O Mu`adh! I replied, Labbaik O Allah's Apostle! And Sa`daik! He proceeded for a while and then said, O Mu`adh! I said, Labbaik and Sa`daik, O Allah's Apostle! He then proceeded for another while and said, O Mu`adh bin Jabal! I replied, Labbaik, O Allah's Apostle, and Sa`daik! He said, Do you know what is Allah's right on His slaves? I replied, Allah and His Apostle know better. He said, Allah's right on his slaves is that they should worship Him and not worship anything besides Him. He then proceeded for a while, and again said, O Mu`adh bin Jabal! I replied. Labbaik, O Allah's Apostle, and Sa`daik. He said, Do you know what is (Allah's) slaves' (people's) right on Allah if they did that? I replied, Allah and His Apostle know better. He said, The right of (Allah's) slaves on Allah is that He should not punish them (if they did that).