Salaah

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?

Q: I was offering namaaz when I heard some sound from my stomach. I am 90% sure it wasn't gas but as I am too much surrounded by waswasas I began to think I may have broken my wudhu but I continued with my namaz. My question is was my namaaz valid?

Q: If you started praying fajr at 5.00am but sunrise was 5.01am and you finished praying at 5.02am. Is that classed as qadha late prayer?

Q: Should we recite when Imam is not reciting in namaaz bajamaat?

Q: Nowadays we use a prayer time chart but we hear from Darul Uloom Deobond that this is not accurate and they quote a hadith that for calculating the time of Esha salah we have to calculate the time difference between the rising and setting of the moon in every 3rd day of the current lunar month. Suppose the difference is 1 hr 47 minute then Esha will be 1 hr 47 minuets after Magrib for the same complete month and the process will continue. What is the truth?

Q: Is ishraaq and chaast salaah the same or we should read both because I am regularly reading ishraaq but chast I read some times. Someone said it is the same, if you read it in the early morning it is ishraaq and if you read it later than it is called chasit. Please explain.