Hadith 2797
Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that the Prophet Muhammad (peace and blessings be upon him) said: "Every word in which there is no testimony of faith is like a severed hand."
Hadith 2798
Sayyiduna ‘Adi bin Hatim (may Allah be pleased with him) narrates: A man delivered a sermon in the presence of the Prophet (peace and blessings be upon him). He said: Whoever obeys Allah and His Messenger has found guidance, and whoever disobeys both of them has gone astray. So the Prophet (peace and blessings be upon him) said: This is a bad orator. You should say: Whoever disobeys Allah and His Messenger.