sajda-e-sahw

Q: If someone is praying two rakaats nafl and they get up for the third rakaat, read Surah Faatiha full and finish that third rakaat, then does sajda-e-sahw, is that valid?​

Q: Is sajda-e-sahw for farz, Wajib and sunnat muakkada salah only or do you have to do it if you make a mistake in nafil salah as well?

Q: I forgot to perform sajdah sahw which was wajib upon me during the first 4 rakats of sunnah namaz. Then I started Fardh namaz and once I finished fardh namaz I realised that I forgot to perform sajdah sahw for sunnat namaz. Is it permissible to perform the missed sajdah sahw of the sunnat namaz after the fardh prayer?

Q: If during the 4 rakaah prayers of zuhr or asr during the qaaidah after 2nd rakaat I recite Durood sharif (complete or some part of it) by mistake with Tashahhud.Then should I do sajdah sahw?

Q: Dear Mufti Saheb, In Tuhaftul Almai, pg.219 vol.2, is mnentioned that when making sajdah sahw according to Imam Abu Haneefah, the correct method is to recite all the duas first, then make salaam to the right, then 2 sajdas and then recite tashahhud only, then salaam. Is this the correct procedure. If not, then what is the correct one? Would be grateful if you mention some hawalas.

Q: If I missed the first rakha and joined in second one. During the salah imam made a mistake and at last did sajda-e-sahw. Should I complete the first rakaat or not?

Q: With regards to Taraaweeh:

1. An Aayah was recited correctly. The Imaam thereafter repeated the Aayah and changed it (incorrectly) due to some doubt. Is the initial correct recitation or the second recitation which was incorrect taken into consideration? Does the Aayah have to be repeated?

2. For the purpose of listening to the Luqmah of a Saami', the Imaam remained silent for the duration of 3 Subhaanallaah or more (he did not recite Qiraat for that duration). Should Sajdat-us-Sahw be made?

3. Additionally, if a person because of some disturbance missed an Aayah in Surah Faatihah, or one sentence in his At-Tahiyyat, does he have to make Sajdatut-us-Sahw? To what extent is the Surah Faatihah and At-Tahiyyat Waajib? 

Q: I was praying the four fardh of Zuhr Salaah and after two rakaats I read tashahud, durood and dua and made both salaams but whilst making the second salaam I realised my mistake so I stood back up and completed the Salaah but I made sajda sahw. Was this correct? Do I need to repeat my salaah?

Q: If a person because of some disturbance missed an Aayah in Surah ​Faatihah, or one sentence in his At-Tahiyyat, does he have to make Sajdah-e-Sahw? To what extent is the Surah Faatihah and At-Tahiyyat Waajib?

Q: My question is if someone unintentionally read a surah in the third or fourth rakaat of a farz salaah, does he have to do sajda sahw? Similarly, if someone forgot to read a surah in the third or fourth rakaat of sunnat salaah, does he have to do sajda sahw?