Many people do not take a hair cut until the end of Sefira (including Lag B'Omer) because of a position of the Ari Zal. Where is the Ari Zal? What is the source for this? Did the strigency of the Ari ...
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 ...
What is the earliest halachic source for the minhagim of mourning during sefira? Note that this does not mean the story of R' Akiva, I'm talking about halachic references to prohibitions such as not ...