R' Moshe Isserles (Rema)

Should one rise early in the morning to serve God, and should one 'awaken the dawn' rather than be awakened by it?

At minimum, one should not delay past the time of prayer when the congregation prays.

Should one recite the passage of the Binding of Isaac, the manna passage, the Ten Commandments, and the sacrifice passages in the morning?

Only when one is alone is it permitted to recite the Ten Commandments whenever one wishes; it is for…

Should one visualize or contemplate standing before God at all times, including in private and when lying in bed?

One should place God before oneself always. This is a great principle in Torah and the practice of t…

Should one perform acts of devotion publicly even if mocked, or should one perform them in privacy?

One should not be ashamed before people who mock one's service to God. However, when acting in priva…

Can tzitzit be placed on a folded tallit without sewing?

There are those who say tzitzit are required even without sewing, and it is good to put tzitzit on s…

Can tzitzit be placed on a folded tallit without sewing?

And there are those who allow it to be done in any way and this is the main opinion (וכן עיקר)

If tzitzit already exist on a garment, and one adds a second set, what is the rule?

And there are those who allow it to be done in any way (וכן עיקר) - meaning whether the first or sec…

Are Egyptian garments (guchash) and other regional garments from Turkey and Ashkenaz exempt from tzitzit despite having four corners?

So too with the garments of the regions of the people of Ashkenaz and Spain, since their corners are…

Must one organize/prepare festival prayers (Mussaf and other infrequent prayers) before praying them, or is preparation unnecessary?

The requirement for advance organization applies only when praying by heart/memory. When praying fro…

If one failed to concentrate during the Avot blessing, must one repeat the Amidah?

Nowadays we do not go back to repeat the Amidah due to lack of kavvanah, because even in the repetit…

May one raise one's voice during the Amidah if one cannot concentrate while whispering?

If one raises one's voice at home when praying so that household members will learn the prayer from …

On Rosh Hashanah and Yom Kippur, may one pray the Amidah aloud even in a congregation?

This is our practice (to pray aloud on Rosh Hashanah and Yom Kippur in congregation). Nevertheless, …

May one sit within four cubits of someone praying?

Four cubits distance required also behind the praying person (contrary to some Sephardi authorities)…

If one was already sitting and another person stands to pray nearby, must the sitting person rise?

Nevertheless, it is a pious trait (midad chasidus) to rise even in such a case, in order to remove t…

If one urgently needs to pass gas during prayer and cannot hold back, must one walk backward four cubits before doing so?

When praying with a congregation, one does not need to walk backward at all, nor recite the 'Master …