O people...
O people, no Prophet or Messenger will come after me and no new faith will be born. Reason well, therefore, O people, and understand my words, which I convey to you. I leave behind me two things, the Qur'an and my example, the Sunnah, and if you follow these you will never go astray. All those who listen to me shall pass on my words to others and those to others again; and may the last ones understand my words better than those who listen to me directly.
Be my witness O' Allah, (SWT) that I have conveyed Your message to Your slaves."The importance of this sermon can be seen from the Prophet's perception that this occasion may be the last one during his lifetime. He felt that this was the right time to summarize the principles of Islam to his fellow brothers and sisters. By the perfection of this religion, it means that there's no need for humanity, and for the Muslims in particular, to look for another alternative way of life.
As long as one holds fast to the two things left behind by the Prophet (the Qur'an and the Sunnah), one will never go astray. Death About two months after returning from Makkah for Pilgrimage, the Prophet (PBUH) became ill but he was still able to perform his prayers in the mosque and give directives to the companions. His health was deteriorating day by day.
At the last moment he asked Abu Bakr to lead the prayers in the mosque, Every member of his family and every companion was worried about his health. It was on Monday, 12th Rabi'Al-Awwal, the year 11A.H., when he passed away at the age of sixty three years. Many people did not believe that he had passed away. They thought that the Messenger of Allah would live forever.
It was Abu Bakr, who had the feeling, since the Farewell Pilgrimage that the death of the Prophet (PBUH) was coming near, He convinced the congregation that the Prophet (PBUH) had actually passed away. Abu Bakr said to the congregation that if they worshipped Mu, Muhammad had died , and if they worshipped Allah (SWT), He lives forever.
Then hrecited from the Qur'an: "Muhammad (PBUH) is nought but a Messenger like the Messengers who had surely passed away before him: will you, then, if he dies or be slain, turn round on your heels?"A Guidance to follow Muhammad as a man had already died, but as a Prophet (PBUH) he left behind him a legacy in the form of the Qur'an and the Sunnah. He stressed the urgent need to hold firmly to these two sources during his farewell speech in the valley of Arafat.