1) In which of the following cases does one have to repeat the entire prayer?

1. If one omits the Takbiratul-Ihram.
2. If one unintentionally adds or subtracts to the number of rakahs.
3. If one is in doubt of the number of rakahs prayed.
4. All of the above.

2) Select a false statement.

1. The “prostration of forgetfulness” is not required if one forgets to perform a recommended act of prayer.
2. The “prostration of forgetfulness” is required if one unintentionally leaves out a wajib (obligatory act of prayer).
3. The “prostration of forgetfulness” is not required if one leaves out a rukn (essential component of prayer).
4. None of the above.

3) The Arabic word for prostration is:

1. rukn.
2. wajib.
3. salah.
4. sahw.
5. sajdah.

4) Select a true statement.

1. If the Imam makes a mistake and offers the “prostration of forgetfulness”, those behind him do not have to do it.
2. If one makes a mistake behind an Imam, one must offer his own “prostration of forgetfulness.”
3. If one is uncertain about how many rakahs they have prayed, they do not need to make up for them at all.
4. If one forgets to perform the “prostration of forgetfulness” but remembers shortly afterwards, they should do it as soon as they remember it.

5) When is sajdah as-sahw required?

1. Only when you add to the acts of salah.
2. Only when you subtract to the acts of salah.
3. When you forget the number of rakahs and are in doubt.
4. When you add or subtract to the acts of salah.
5. Option C and D.

6) At which point of salah is one required to perform the “prostration of forgetfulness”?

1. Before salah.
2. At the conclusion of salah.
3. After the first rakah.
4. Along with the next upcoming salah.