Method of Salaah

Q: If one makes a mistake in the Qiraat of fardh salaah which did not change the meaning, what should be done?

Q: Is Raful-yadain a sunnah or a part of an outdated Hadith?

Q: Can one also read the dua that is recited after every four rakaats in Taraweeh outside Ramadhaan after all other salaats?

Q: I wanted to ask regarding takbeer tahreema for Salaah. I have learnt that it is necessary to say it loud enough to hear oneself otherwise the Salaah does not start. I want to ask, do you have to hear the takbeer clearly or is it enough to hear the sound? Also, if I only hear parts of the tahreema, and not others, will my Salaah be valid?

Q: What extra Duas can be made in Jalsa, sujood and qiyaam?

Q: Does reading in salaah "Rabbana lakal hamd" with qalqala at the end break the 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: 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?