Sunan Abi Dawud 4630
سنن أبي داود#4630SahihMuhammad al-Firyabl said:I heard Sufyan say: If anyone thinks that ‘All (Allah be pleased with him) was more deserving for the Caliphate than both of them, he imputed error to Abu Bakr, ‘Umar, the Muhajirun (Immigrants), and the Ansar (Helpers) Allah be pleased with all of them. I think that with this (belief) none of his action will rise to the heaven
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih Isnaad Maqtu
Muhammad Muhyi Al-Din Abdul HamidSahih Isnaad Maqtu
Shuaib Al ArnautSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 42:35