Sayyed Mohammad Al-Musawi, Sayyed Mohammad al-Musawi is originally from Iraq and heads up the World Ahlul Bayt Islamic League in London. Other than being involved in various humanitarian projects, he frequently responds to... Answer updated 1 year ago

The status of Ali (AS) from the Prophet Muhammad is like the status of Haroun  from Prophet Musa (AS). This has been mentioned in an authentic Hadeeth known as Hadeeth al-Manzilah where the Prophet told Ali: O Ali, you are from me like Haroun was from Musa but there will be no Prophet after me. This Hadeeth was narrated in most eminent Sunni books of Hadeeth e.g,

1. Saheeh al-Bukhari :number 3430 and 4064.

2. Saheeh Muslim : numbers 4418, 4419, 4420, 4421.

3. Musnad Ahmad Bin Hanbal : Musnad Al-Asharah; 1384, 1408, 1423, 1427, 1450, 1465, 1498, 1514, 1522.

4. Sunan al-Tirmithi ; 3658, 3663, 3664.

5. Al-Sunan al-Kubra by al-Bayhaqi ; 16400.

6. Al-Sunan al-Khubra by al-Nasaa'ee ; 6911, 6912, 6913, 6914, 6915, 6916, 7169, 7170, 7200, 7201, 7202, 7203, 7204, 

7. Sunan Ibn Maajah; 112, 118.

8. Mustafrak al-Haakim al-Nisabouri; 3294, 4575.

9. Al-Tabarani in al-Mo'jam al-Sagheer ; 825, 917.

10. Mussannaf Ibn Abi Shaibah; 31455, 31456, 31457, 31458, 36346.

And many other Sunni books of Hadeeth.

This Hadeeth along with many Quranic verses about Haroun and Musa, have the clear answer  of the issue of succession of the Prophet Muhammad (SAWA). 

Haroun was the successor of Musa by order of Musa when Musa left his community (Sura Al-A'raaf: 142).

A prominent Sunni scholar from al-Azhar in Egypt , Shaikh Mahmoud Abu Riyyah said: If Muslims follow the Prophet Muhammad in this Hadeeth (al-Manzilah), and read and follow Quran, there will be no dispute that Ali is the real successor after the Prophet (SAWA).

Wassalam.