May the shaliach tzibur interrupt between Geulah and Tefillah (or within Sh'ma and its blessings) to perform Poreis al Sh'ma for latecomers?

What exactly does 'Poreis al Sh'ma' consist of — does it include the full blessing of Yotzer Or or only Kaddish and Barchu?

4 opinions

Is Poreis al Sh'ma performed during the evening (Ma'ariv) service as it is in the morning (Shacharit)?

5 opinions across 3 eras

How many people who have not heard Kaddish/Kedushah are required before Poreis al Sh'ma is performed on their behalf?

3 opinions

May someone who has already heard Kaddish and Kedushah serve as the one who does Poreis al Sh'ma for others who have not?

2 opinions

When one performs Poreis al Sh'ma and then proceeds to be the shaliach tzibur (chazzan) for the repetition, must he complete the entire Amidah?

3 opinions

May a second chazzan conduct a full second prayer service (including Poreis al Sh'ma and repetition of the Amidah) in the same synagogue where the congregation has already prayed?

3 opinions

May the second chazzan's group take out the Torah scroll and read from it if the first group already read from the Torah?

2 opinions

Do all individuals who prayed separately (each on their own, without a minyan) later have the right to conduct Kaddish and Kedushah as a group?

4 opinions