Salaah

Reciting "Salloo fi buyootikum" in place of "Hayya alas Salaah" and Hayya alal Falaah"

Q: Nowadays, masaajid being closed, azaan is a bit modified. In place of Hayya alas Salaah, Hayya ala Falaah, it is said, Salloo fi buyutikim and salloo fi rihalikum. Is it permissible to change azaan and was it done in the era of Sahaabah (radhiyallahu anhum)? How should we reply to these words?

Performing qadha of missed salaah

Q: I want to ask a couple of questions regarding qadha prayers.

1. What should be my niyaah when praying qadha namaz and what time of the day should I offer it?

2. How should I offer my qadha prayers, given that I have the following ones left? (I have only made an estimation, because I don't remember the count exactly): Fajr-4, Zuhr-6, Maghrib-1, Isha-Salaat-ul-witr of 2-2.5 years (around 800)

3. Do I need to offer all of the witr prayers or is there any alternative to it? I request you to outline the complete method, so that I can offer them as quickly as possible.

Performing nafl salaah with the intention of qadha for any salaah one may have missed

Q: Is it possible to make intention during nafl salaah that the nafl salaah be accepted for any qadha salaahs that one may have - specifically qadha salaahs that one may not be knowing of e.g. when ghusl after menstruation has been delayed or when a salaah may not have been performed in a state of wudhu unintentionally or one's ankles/hair may have been exposed, thus rendering salaah invalid?

Masbooq forgetfully making salaam with the Imaam

Q: I missed one rakaat of jamaat salaah. I would like to know if sajdah-e-sahw should be made or not in the following cases after the Imaam made salaam to end the salaah:

1. I made one salaam on the right and then stood up to complete the missed rakaat

2. I made both salaams on the right and left and immediately stood up to complete the missed rakaat

3. I made both salaams and sat in the same position, and after one minute I stood up to complete the missed rakaat.