Is there any prediction in the Torah for the split between Ashkenazim and Sephardim? I was told that there is but can't think of anywhere to look. Thanks.
According to the Daily Halacha website: If a person is unsure whether or not he counted a day of the Omer, and cannot determine conclusively if he had counted or if he had missed that day, he ...
How did this split happen historically and halachically before Shulchan Aruch, and why is not like having two Torahs? Where is the source for the split?