After completing tashahhud in the final sitting position one turns
one's face only to the right with salutation and then saying takbeer, performs two
sajdahs, one after the other, peacefully. After the second sajdah, one has to repeat
tashahhud, durood, etc and complete the prayer in usual way.
If a person omits a wajib part of salat.
If a person causes undue delay in performance of a wajib or fard
part of salat.
If a person repeats or overdoes something.
If a person recites the Qur'an audibly where it should be recited
inaudibly or vice-versa.
If a person forgets to stand in qauma or to sit in jalsah.
If a person forgets to observe the first sitting (qa'dah ula) and
stands up, he should not resume the sitting position on remembering the mistake, but
should complete the prayer and perform sajdah sahv. However, if he realizes his mistake
before standing up fully, he should sit down and need not perform sajdah sahv.
If a person forgets to observe final sitting position in a fard
prayer containing two or four rak'ahs and stands up, he should sit down if he realizes the
mistake before performing the sajdah (of the extra rak'ah) and carry out sajdah sahv to
complete the prayer. If however he realizes his mistake after performing the sajdah (of
the extra rak'ah), he should not sit but perform another rak'ah to complete four or six
rak'ahs. He need not perform sajdah sahv, for this prayer will be regarded as nafl and
fard prayer will have to be offered again.
If a person forgets to recite Al-Fatiha, Qunut, or tashahhud or the
additional takbirs in Eid Prayer.
If the Imam omits or ignores wajib of the prayer, the follower has
to perform sajdah sahv with the Imam. But if the follower omits a wajib neither of them
has to perform sajdah sahv.
If a person omits to recite the additional surah in one or both of
the first rak'ahs of the fard prayer he may recite the additional surah in one or both of
the last rak'ah and perform sajdah sahv at the end.
If a person omits to recite the additional surah in any rak'ah of
the sunnah or nafl prayer, he must perform sajdah sahv at the end.
If in the final sitting of a fard prayer or four rak'ahs a person
has completed tashahhud and then has a doubt that this is his first sitting, he should
stand up for the fifth rak'ah. Now if before performing the sajdah he realizes his mistake
he should resume the sitting position and complete his prayer with sajdah sahv. But if he
has performed the sajdah of the fifth rak'ah, he should add the sixth rak'ah as well and
complete his prayer with sajdah sahv. The first four rak'ahs will be regarded as the fard
prayer and the last two as nafl.
If the Imam or individual omits to recite Al-Fatiha in one or both
of the last two rak'ahs of a fard prayer of four rak'ahs, he need not carry out sajdah
sahv. But if he omits to recite Al-Fatiha in any of the sunnah or nafl rak'ahs, he will
have to perform sajdah sahv because it is essential to recite Al-Fatiha in the first two
rak'ahs of the fard prayer but in all the rak'ah of sunnah and nafl.
If a person carries out two rukus or three sajdahs in the same
rak'ah or recites Al-Fatiha twice, he will have to perform sajdah sahv.
If a person begins to recite durood after tashahhud in first sitting
and has recited as much as "Allahuma salli ala Muhammadin
" he will have to
carry out sajdah sahv.
If a masbuq commits mistake while he is completing his prayer
independently, he has to perform sajdah sahv in the final sitting.
If a person develops a doubt during his prayer as to whether he has
performed three rak'ahs or four and he does not have such a doubt normally, he should
repeat the whole prayer. But if he generally has such doubts he should take into account
the lesser number of rak'ahs (3) and complete his prayer with sajdah sahv.
If a person omits any sunnah or mustahabb parts in the prayer he
need not perform sajdah sahv.
If a person has committed a mistake entailing sajdah sahv but
completes his prayer without carrying out sajdah sahv and realizes this before the
salutation he should immediately perform sajdah sahv and repeat tashahhud, durood, and
complete his prayer provided that he has not turned his face away from the Qiblah nor has
had any conversation with another person.
If a person performs only one sajdah in a rak'ah he may make it up
in a subsequent rak'ah before tashahhud in the final sitting and perform sajdah sahv. If,
however, he, remembers the mistake after tashahhud, he should perform the missed sajdah
immediately and recite tashahhud, durood, etc. and complete the prayer with sajdah sahv as
usual.
If a person has offered four rak'ahs instead of two rak'ahs during a
journey when it is essential to shorten one's prayer, and has observed the first sitting
duly, he should carry out sajdah sahv in the final sitting. In this case, his first two
rak'ahs will be regarded as fard and the remaining two as nafl.