“The Messenger of Allah
(ﷺ) passed by me when I was riding a donkey, and said: ‘O Mu’adh,
do
you know what Allah’s right over His slaves is and what His
slaves’
right over Allah is?’ I said: ‘Allah and His Messenger
know best.’ He
said: ‘The right of Allah over His slaves is that
they should worship
Him and not associate anything with Him. And the
right of the slaves
over Allah, if they do that, is that He should
not punish them.’”
Sunan Ibn Majah Book 37, Hadith 197