About this shiur
An in-depth analysis of the halachic principle of sefek sefeika in the context of Sefiras HaOmer.
A 40 min shiur shiur by Rabbi Daniel Glatstein. Like every video on Lehallel, it was judged and approved under the Lehallel law before it ever appeared — no unreviewed result is ever shown.


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Rabbi Daniel Glatstein has 10,176 approved videos on Lehallel across Chassidus, Daf Yomi, Halacha — every one reviewed against the same written standard before it appears.
Recently approved from the same speaker: “The Mitzvah of Having Salt on the Table - Mishna Berura Daf Hashavua Siman 167 Seif 5” (16:55) · “Ki Seitzei: Tznius - The Middah that Transcends All” (4:45) · “5 Sharp Divrei Torah on Parshas Ki Seitzei” (10:27).
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What’s said in this shiur
The opening of this shiur, in Rabbi Daniel Glatstein’s own words— taken from the captions, so names and Hebrew terms may be approximate.
In Siman Taf Peh Tes, as I'm sure everyone is familiar with, the halacha is that if you forgot and you did not make Sefiras HaOmer at night, then there's a way to rectify it by counting during the day. In the Siman HaMechaber in Siman Taf Peh Tes of Zayin, in the Shulchan Aruch, it's Sif Tes Zayin. Let me tell you what the Mechaber says first and we'll see it in the Shulchan Aruch. Shachach u'varach kol halaila, yisbor bayom b'lo bracha. Case so if you forgot your count, you could count during the day without a bracha. Says the Mishna Berurah, according to many poskim that b'dieved Sefiras Hayom, it works. B'dieved counting during the day works. So let's say last night you didn't say the Sefirah right now, you could say Hayom Shiva asar yom shem shnei shavuos. Shlosha yamim la'omer. Shouldn't say it standing. Yeah, the Sha'ar HaTziyon says that the Bahag in Hilchos Shavuos and the Rambam poskin niktzar bayom kosher. If you cut the the Omer during the day, it's it's okay. And we know counting is totally on the ketziras ha'omer. V'ya du'a d'rachmana talya Sefirah b'ketzirah d'chasiv meihachal chermesh bakama tachel lispor. Although you could push off and like Tosefos says, even if ketzirah vayom kosher, but Sefirah needs temimus. Fine. But there is a a valid opinion that um Sefirah bayom, it works
Jump to a moment
- 0:33In Siman Taf Peh Tes, as I'm sure everyone is familiar with, the halacha is that…
- 4:18k'dei l'gmarei hagmarei. It's not like you completely skipped. She'ein osei for o b'vracha, you can't…
- 7:54a bracha? Yes. Not only can you, you're obligated to. Because according to many Rishonim, every…
- 12:12like says Sefirah for that purp- for that reason. Okay. We'll see. We're going to get…
- 15:49I mean, now the now it's going to work against you because you're right, I counted…
- 20:16regular beracha. Which berachas are derabbanan. So since berachas are derabbanan, even if you have a…
- 23:53and you forgot to count? This is a famous thing. What's the halacha? You're the rabbi,…
- 27:37Komarna. That Talmidei Ba'al Shem Tov stama d'azai, if they miss a night, they can continue…
- 31:45uh reish taz vav subkatan chaf, we don't make brachos out of safek safeka. Can I…
- 35:34Now, 1 second. Says the Mishna Berurah, "What if I ate a kabeiah, but I ate…
About Rabbi Daniel Glatstein on Lehallel
10,667 approved videos from 2016 to 2026, 10,036 of them searchable by their own words. Open all of Rabbi Daniel Glatstein’s shiurim →
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Key takeaways
- Shiur — 40 min, by Rabbi Daniel Glatstein
- Approved by the Lehallel judge before appearing — never an unreviewed result
- Watch free during prelaunch on Lehallel
Watch this now
Don’t just read about it — watch it
The Amazing Lomdus of Why Sefek Sefeika Applies By Sefiras Ha'omer and Not Other Brachos40:07
The Mitzvah of Having Salt on the Table - Mishna Berura Daf Hashavua Siman 167 Seif 516:55
Ki Seitzei: Tznius - The Middah that Transcends All4:45Every video is reviewed against one written standard before it can play.



