Salaah

Q: I read Suratul Kawthar reading the letter "th" with a letter "sin" does that break salaah? I read in a fatwa that it does, true or wrong?

Q: In my 'Asr Salaah I recited a verse of Surah Faatihah and whilst reciting I thought I made a mistake, and thought I'd repeat that verse and I didn't
stop reciting until I finished the verse, and then I recited again, but during the verse in which I thought I made a mistake, I was like “Shouldn't I stop?" But I carried on until finishing that verse; now I wonder, does this count as a purpose addition in prayer by finishing the verse in which I thought to have made a mistake? And is my Salaah valid?

Q: If one arrives in the musjid during the first rakat of fajr salah, and one still needs to perform his Sunnats, should he rush to complete his 2 Sunnats so as to try not to miss a rakaat or should he take his time and miss the rakaat?

Q: I know that the sutra of the imam is counted as the sutra for the followers, making it ok to pass in between the rows of the followers. But what if the imam has no sutra, will it then be impermissible to walk in between the rows of the followers?

Q: I am a Parkinson's disease patient. Parkinson's disease is ageing of the brain before time. I am now at a stage where I am unable to go to masjid, I pray at home and it is not easy. I keep having problems concentrating. On the days that my condition worsens my lips hardly move as I end up doing tilaawat in my heart. I sometimes forget which position I am in, usually forget what I have prayed. Often go to sleep and forget which rakah I am on. I try my best  to repeat (sometimes until the end of salaat time) I feel helpless. Is my salaah valid? In the above situation could I perform my salaah lying down and how would I do this?

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?