Salaah

Mistakenly standing up for the third rakaat in a two rakaat salaah

Q: If while praying two rakaats salaah, after sujood of the two rakaats, one forgets he has completed one or two rakaats and therefore stands up with the intention of praying one more rakaat and doing sajda sahaw but on standing he remembers accuratley that he in fact has completed two rakaats.

1. In this situation, while he has stood up with or has already started reciting Surah Fatiha, is it permissible to go to tashahhud or one should complete four rakaats?

2. Would sajdah sahaw be needed after completing four rakkats?

3. Or salah will not be valid and one must repeat it, if for example he was praying two rakaat sunnat muakkadah of Fajr or two rakaats Fardh of Fajr because he has prayed four rakkats instead of two?

Reciting Surah Faatihah instead of atthiyyaat in salaah

Q: I was reciting Surah Faatihah in place of Attahiyyaat. I realized at the time when I was going to lift my index finger. I stopped Surah Faatihah then recited Attahiyyaat and ending with sajdah sahw or I completed Surah Faatihah and ending with Salaam only. Will my salaah be valid? If not, kindly inform me as how do I correct such an error in salaah?

Women's rukoo

Q: I was bowing in ruku and usually I tend to bend my knees slightly when doing so because apparently that is how a woman’s salah is supposed to be according to Hanafi mazhab. My hands are usually clasped around my knees. I suddenly remembered that I read that women aren't supposed to clasp their hands over their knees and was going to move them. I believe I intended on moving my body and arms a little up so the tips of my fingers would reach the top of my knees. I ended up not really moving much I think - I only moved my hands a little up I think.

1. Is my salah fine?

2. Would my salah have been invalidated if I moved my arms and body up too?