Those who are seeking to obey the highly respected Prophet Muhammad and follow his steps have it easy because they got the book that God promised to preserve, the BEST HADITH (Quran). Obeying the Prophet Muhammad is to follow his message, the Quran and Quran alone. When the Prophet Muhammad died he left behind ONLY one book completely written and preserved, i.e. the Quran. He never left any Hadith books. These books are the innovations added to Islam about 150-200 years after the death of the prophet.
The Farewell Pilgrimage of the Prophet Muhammad was a significant historical event in the Muslims life. Although thousands of Muslims witnessed the Farewell (last) Sermon given by the Prophet Muhammad, the Hadiths books reported at least three versions of the same Sermon. This only reflects how confusing, misleading, distorted and inaccurate are the Hadiths Books. For an event witnessed by over so many people an accurate narration should have been available, but it has not.
As God promised in the Quran, His Hadith (Quran) will be always , the BEST HADITH (39:23), the MOST ACCURATE HADITH (4:87), and the ” NOT FABRICATED HADITH” (12:111).
Therefore for the sincere Muslim who is seeking the truth, and who will read this reported Sermon, the truth will be clarified for him/her.
THREE VERSIONS OF THE LAST SERMON
{Here are the references to the three versions of the Last Sermon, request you to kindly read those from the Books of Hadiths mentioned below to understand how Muslims were made to get confused}
1) I leave with you Quran and Sunnah, Muwatta, 46/3
2) I leave with you Quran and Ahl al-bayt , Muslim 44/4, Nu2408; ibn Hanbal 4/366; Darimi 23/1, nu 3319.
3) I leave for you the Quran alone you shall uphold it.
Muslim 15/19, nu 1218; ibn Majah 25/84, Abu dawud 11/56.
See Sahih Muslim, Book of Hajj, Book 7 , Number 2803: