Re: Did Prophet(pbuh) chose someone as Caliph !
pagluu
some sahaba not paying allegience to abu bakr does not neccesarily prove that Ali was divinely appointed
as sa'd b ubadah one of the most distinguished sahaba and equal to abu bakr /Ali in many respects did not pay allegience to abu bakr as he considered himself as more worthy of caliphate
Rest of sahaba [who initially withheld allegience] including Ali after 6 months gave alliegience to abu bakr ....furthermore some people of banu ummayyah also did not pay alligience to abu bakr for several months either including the early convert khalid b sa'eed.
Ali did not oppose abu bakr & umar as they ruled by and large according to the book and sunnah , later people Ali opposed politically and militarily as they deviated from these pillars