Liaison office of Grand Ayatullah Sayyid Ali Al Sistani (L.M.H.L) in London, Europe, North and South America.
1177. If a person doubts while offering prayers as to whether or not
he has performed a particular obligatory act, like, if he doubts whether or not
he has recited Surah al-Hamd, and if he has engaged himself in the next act,
which he would not have intentionally performed in a normal circumstance, like
reading the next Surah, he should ignore the doubt. But in a situation other
than this, he should perform the act about which he doubts.
1178. If a person doubts while reciting a verse, whether or not he has
recited the preceding verse, or doubts while reciting the end part of a verse,
whether or not he has recited its beginning, he should ignore his doubt.
1179. If a person doubts after Ruku or Sajdah, whether or not he has
performed its obligatory parts, like Zikr and steadiness of the body, he should
ignore his doubt.
1180. If, while going into Sajdah, a person doubts whether or not he
has performed Ruku, or if he doubts whether he stood up after Ruku or not, he
should ignore the doubt.
1181. If a person doubts while rising to stand, whether or not he has
performed Sajdah or tashahhud, he should ignore the doubt.
1182. If a person, who is offering prayers sitting or lying, doubts at
the time of reciting Surah al-Hamd or Tasbihat Arba'ah, whether or not he has
performed Sajdah or tashahhud, he should ignore his doubt. And if the doubt
occurs before reciting Surah al-Hamd or Tasbihat Arba'ah , he should perform
them.
1183. If a person doubts whether or not he has performed one of the
Rukn of prayers, and if he has not yet engaged himself in the next act, he
should perform it. For example, if he doubts before reciting tashahhud, whether
or not he has performed two Sajdah, he should perform them. And if he remembers
later that he had already performed that Rukn, as an obligatory precaution,his
prayers will become void because of additional Rukn.
1184. If a person doubts whether or not he has performed an act which
is not a Rukn of namaz, and if he has not engaged himself in the following act,
he should perform it. For example, if he doubts before reciting the other Surah,
whether or not he has recited Surah al-Hamd, he should recite Hamd. And if he
remembers after reciting Hamd that he had already recited it, his prayers will
be in order, because a Rukn has not been added.
1185. If a person doubts whether or not he has performed a Rukn, like,
while in tashahhud, he doubts whether or not he has performed two Sajdah, and
ignores his doubt, but remembers later that he had actually not performed that
Rukn, he should perform it if he has not entered into the next Rukn.
However, if he has engaged himself in the next Rukn, his prayer is void. For
example, if he remembers before Ruku of the next Rak'at, that he had not
performed two Sajdah, he should perform them, and if he remembers this during
Ruku or thereafter, his prayers are void.
1186. If a person doubts whether or not he has performed an act which
is not a Rukn, and if he is engaged in the next act, he should ignore his doubt.
For example, if he doubts while reciting the other Surah, whether or not he has
recited Surah al-Hamd, he should ignore his doubt.
And if he remembers later
that he had actually not performed that act, he should perform it, if he has not
entered into the next Rukn, and if he has entered the next Rukn, his prayers are
in order. Based on this, if he remembers in qunut that he has not recited Surah
al-Hamd he should recite it, and if he remembers it in Ruku, his prayers are in
order.
1187. If a person doubts whether or not he has said Salam of prayers
when he is engaged in supplications or other namaz, or when the form of namaz
has already changed, he should ignore his doubt. And if he doubts before these
acts, he should say Salam. And if he doubts at any stage, whether he recited the
Salam correctly or not, he should ignore that doubt.