Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) narrates: I was riding behind the Prophet (peace and blessings of Allah be upon him) on a mount, and between me and him was only the rear part of the saddle. He said: O Mu'adh! I replied: O Messenger of Allah! I am present. Then the Prophet (peace and blessings of Allah be upon him) continued for a while, then he said: O Mu'adh! I replied: O Messenger of Allah! I am present. The Prophet (peace and blessings of Allah be upon him) asked: Do you know what is Allah's right upon His servants? I replied: Allah and His Messenger know best. The Prophet (peace and blessings of Allah be upon him) said: That they worship Him and do not associate anything with Him. The narrator says: The Prophet (peace and blessings of Allah be upon him) continued for a while, then he said: Do you know what is the right of the servants upon Allah when they do that? I replied: Allah and His Messenger know best. The Prophet (peace and blessings of Allah be upon him) said: The right of the servants upon Allah is that when they do that, Allah will not punish them.
Hadith Referenceصحیح ابن حبان / كتاب البر والإحسان / 362
Hadith Gradingفضيلة الشيخ الإمام محمد ناصر الدين الألبانيصحيح - «صحيح أبي داود» (2307): ق.فضيلة الشيخ العلّامة شُعيب الأرناؤوطإسناده صحيح على شرط الشيخين.