It is narrated from Sayyiduna Abu Umamah (may Allah be pleased with him) that: I heard the Messenger of Allah (peace and blessings be upon him) delivering a sermon to the people during the Farewell Hajj while riding his she-camel al-Jad'a', and he was saying: "O people, obey your Lord, offer your five daily prayers, pay the zakah on your wealth, fast your month, and obey those in authority over you; you will enter the Paradise of your Lord." I asked Abu Umamah (may Allah be pleased with him): When did you hear this hadith? He said: I heard it when I was thirty years old. This hadith is sahih (authentic) on the condition of Imam Muslim, but the two Shaykhs did not record it.