Salaah

Q: First rakat of ishaa I said 'Ar-Rahman Ar-Raheem' but then I don't know whether I said the ha or HA with 'Ar-Raheeem'. I chose to ignore it as a doubt. During Salah I made many mistakes and corrections in the essential aspects - then after completing the prayer [all four rakaats] I ended prayer and did two sujood uh sahw. I went downstairs to get a drink, came back up then I still had the niggling doubt about whether I said ha or HA in 'Ar-Raheem' so I thought like you know it hasn't been a long time since I made Salaam so I said takbir and performed 1 rakaat in replacement of the rakaat in which I doubted with the full tashahhud and exited prayer and did two prostrations of forgetfulness Now plz tell me is my prayer valid or not?

Q: Is raf-ul-yadain compulsary in namaaz?

Q: Does the Azaan need to be repeated if half the Azaan was given out of the salaah time and half in the salaah time?

Q: If a person prays nafl salah without wudhu, will he have to repeat it?

Q: If a person performs taraweeh salah for several days and his Esha salah was invalid will he have to repeat the taraweeh salaah?

Q: A person after having lead salaah smells some urine of a mice on his waistcoat he can't determine the amount what must he do, tell all the musallees to repeat or will it be okay?

Q: What is the procedure of ladies Salaah? Last month I did Umrah. In Saudi Arabia both men and women performed Salaah in the same manner.

Q: There appears to be no practical requirement for a microphone to be used for certain Salaah in the Masjid, in particular Fajr where, unfortunately, the congregation is small. Therefore I have 5 specific questions:

1. Is it necessary from a Shar'ee perspective that the followers of the Imam need to hear the Qir'at of the Imam?

2. If the answer to the first question is in the negative, why are our Ulama using microphone for Salah?

3. What are the Shar'ee objections or requirements, if any, for using a microphone in Salah and

4. Even if the Jamat is large, is it not sufficient to use the method of citing people at intervals in different rows so that they recite the takbeer and everyone else can therefore come to know that the Imam has gone in to Ruku, Sajdah etc?

5. Finally, the use of the microphone also entails the Imam engaging in loud congregational Du'a after the Salah and/or announcement and/or Naseehah which then disturbs the Masbooq. Is this permissible? If not, why is it done by our own Deobandi Ulama?

Q: I am just a bit confused about this question that once I made niyyat of reading four rakaats but I made salam after two rakaats an just as I made salam I remembered so I stood up and completed my other two rakaats. So now was my Salaah accepted or do I have to make Qadha for that Salaah. Please advise.

Q: How many minutes before sunrise is fajar Salaah accepted?