Salaah

Q: In the Hanafi madhab, if you remain silent (during prayer) for a time period where one can recite "Subhan Allah" 3 times, then it becomes waajib for the person to perform Sajdah Sahw. If, however, the individual did not perform Sajdah Sahw, does he then have to repeat his prayer? What if, in the past, the person did not pay attention to this fact during his prayer, and he now has several prayers where he was required to perform Sajdah Sahw, but he did not do so. Does he have to repeat all those prayers?

Q: When the Azaan is going on, can one continue reading the Quran, is this considered sinful?

Q: After fajr and asar Salah, the Imaam saheb sits facing the muqtadi. Why?

Q: I have heard recently that some Fuqahaa have permitted  a certain amount of degrees leeway on either side when facing the qibla. Could you please elaborate on this?

Q: What is the time difference between rakatul fajr and salaatus subhi? Should the sunnah be considered as optional?

Q: What is the method of making salam behind the Imaam in jamaat?

Q: What is amal-e-katheer?

Q: If person A prays a fard prayer and Person B prays nafl prayer behind him, will Person A obtain the reward for praying in congregation (25/27 times the reward of praying alone), even though the person he is leading is only praying nafl?

Q: If the Imaam makes sajdah sahw, what should a latecomer do if he sees the Imaam making taslim but then does sajdah sahw? Should he also make salaam and sajdah sahw, or should make sajdah sahw without Salaam?

Q: In Nizamuddin markaz we have seen that the Imam saheb does not make dua after salah with congregation and we make dua individually but in other masaajid the imam makes very short dua with congregation. Which one is sunnat?