Thus it does not seem to be logical for the Prophet...
Thus it does not seem to be logical for the Prophet (PBUH&HF) to keep more than a hundred thousand people in such unbeatable heat, and keep them waiting in such condition until those who have left behind reach the place, and then all to tell them was that "Ali is the friend of believers!" Moreover how can we justify the revelation of Verse 5:67 which was revealed before the speech of the Prophet in which Allah said: "O Apostle!
Deliver what has been sent down to you from your Lord; and if you don't do it, you have not delivered His message (at all); and Allah will protect you from the people ..." (Quran 5:67). Is it logical to say that Allah warned his Prophet that if he does not convey the message of "friendship of Ali", he has spoiled all he has done?! Also what danger can be imagined for Prophet if he states "Ali is the friend of believers"? Then what danger from the side of people is the above verse referring to?
Furthermore, how can the phrase "Ali is the friend of believers" complete the religion? Is the verse of completeness of religion (5:3) which was revealed after the speech of Prophet suggesting that without saying "Ali is the friend of believers" the religion is not complete? Also, as we quoted in the first part, Umar and Abu Bakr congratulated Ali by saying: "Congratulations O son of Abu Talib!
Today you became the MAWLA of all believing men and women." If, here, the word MAWLA means friend then why the congratulations? Was Ali the enemy of all believers before that time, so that Umar said that this day you BECAME the friend of them?! In fact, every WALI is a friend, but the reverse is not always true. This is why the Arabs use "Wali al-Amr" for the rulers, meaning the master of the affairs.
Thus, logically speaking, the word MAWLA can not be interpreted as friend, and we should rather use its other more-frequently- used meanings which are Leader and Guardian. Perhaps one would ask why Prophet didn't use other words to further explain his intention. In fact, people asked him the same question, and the following Sunni documentations are the answers of the Prophet (PBUH&HF): When the Messenger of Allah (s) was asked about the meaning of "whomever I am his MAWLA then Ali is his MAWLA".
He said: "Allah is my MAWLA more deserving of me (my obedience) than myself, I do not dispute him. I am the MAWLA of the believers, more deserving in them than themselves, they do not dispute me.