'Ali's speech upon the death of Abu Bakr (ra)

original product have to proove himself original, no need to make fake and fabricated beliefs.

why hz. ali ra did not annouced that he ra was imam, if you thing imamate is pillar of islam.

why quran slient on this issue.

why prophet phuh slient on such issue, where as at last sermon he pbuh said that i have deleivered what i got from allah.