This is an explicit, or near-explicit, indication that there would be consensus upon him. Accordingly, we say that Abu Bakr’s caliphate was established by an allusive or explicit text, according to what the scholars understand from these texts.
If someone were to say: “These texts are overturned by a single text: when the Prophet, peace and blessings be upon him, left Ali ibn Abi Talib, may Allah be pleased with him, in charge of his family as he set out for Tabuk, Ali said, ‘O Messenger of Allah, are you leaving me behind with the women and children?’ He replied, ‘Are you not pleased to stand to me as Aaron stood to Moses, except that there will be no prophet after me?’” (1) Moses had said to Aaron, “Take my place among my people, do right” [al-A‘raf 7:142]. This indicates that Ali ibn Abi Talib, may Allah be pleased with him, was the caliph after the Messenger, peace and blessings be upon him, and that Abu Bakr, may Allah be pleased with him, was not the caliph.
The response to this is that this is one of the ambiguous texts, whereas the proofs we have mentioned concerning Abu Bakr are decisive texts. Those firmly grounded in knowledge refer what is ambiguous back to what is decisive, so that all the texts may be understood decisively. None follows what is ambiguous while disregarding what is decisive except one in whose heart is deviation, as Allah Most High says:
“As for those in whose hearts is deviation, they follow that of it which is ambiguous, seeking discord and seeking its interpretation.” [Al ‘Imran 3:7]
If someone were to ask: How can we resolve the apparent ambiguity in this hadith?