The most controversial such prophetic saying (hadith) was delivered at the Ghadir Khumm in 632 CE and gave Ali the same spiritual authority (walaya) as Muhammad, according to the Shia.
[13] Reported by canonical Sunni and Shia sources,[14][14][15][15] the hadith of the position reads, "Are you not content, Ali, to stand to me [Muhammad] as Aaron stood to Moses, except that there will be no prophet after me?
[20] Alternatively, some Sunni scholars have limited the scope of the hadith of the position to imply only the temporary deputyship, while the Shia counterargument is that this interpretation would have made redundant Muhammad's exclusion of Ali from prophethood.
'he who will rise'),[28] is believed to miraculously remain in occultation since 874, and is expected to return in the end of times to eradicate injustice and evil.
'two treasures') is a widely-reported prophetic statement that introduces the Quran and the progeny of Muhammad as the only two sources of divine guidance after his death.
[35] This hadith is central to Twelver Shia, where their line of Twelve Imams, starting with Ali, are viewed as the spiritual and political successors of Muhammad.
[36] The version that appears in Musnad Ahmad, a canonical Sunni source, reads,I [Muhammad] left among you two treasures which, if you cling to them, you shall not be led into error after me.
[42] Variants of this tradition can be found in Sahih Muslim,[43][41] Sunan al-Tirmidhi, and Musnad Ahmad,[43] all canonical sources in Sunni Islam.