 Shias do not accept many Sunni hadiths unless they are also recorded in Shia sources or the methodology can be proven of how they were recorded.Also, some Sunni-accepted hadith are less favored by Shias; one example is that because of Aisha's opposition to Ali, hadiths narrated by Aisha are not given the same authority as those by other companions.Another example is hadith narrated by Abu Hurairah, who is considered by Shias as the enemy of Ali.