The View of the Ulama in Regard to Moulana Sa’d

Q: Mufti Saheb, currently the ummah is passing through a period of major ikhtilaaf in the circles of Tableegh. Some Ulama are saying that we should follow Nizaamuddeen, while other Ulama say that we should follow Raiwind (i.e. the Aalami Shura).

Some musjids are not allowing jamaats who come from Nizaamuddeen to give bayaans in their musjids, while other musjids are not allowing jamaats who come from the Aalami Shura side to give bayaans in their musjids. 

Some people are inviting towards attending the ijtima held by one group, while other people are discouraging people from attending the ijtima.

Some Ulama say that it is not permissible to listen to the talks of Ml Sa’d, while other Ulama say that there is nothing wrong with listening to his talks. 

Some people feel that speaking out against Ml Sa’d and condemning him is not permissible as it enters under gheebah. Is this correct?

We will really appreciate it if Mufti Saheb could present some guidance on this serious difference.

Giving one's own interpretation of the Quraan Majeed

Q: I went to visit a family member. They had some notes lying around. They told me they were going to do a tafseer class. I read over the notes and found some very strange explanation of the Quraan. 

When I looked in the tafeer, I noticed the notes were from Ma'ariful Quraan but they had added their own interpretation trying to say a Surah is promoting Dunya. 

Will a person who twists the tafseer to suit him be a kafir or what will his status be?

Questions related to a masbooq

Q: Kindly answer below questions related to salaah: 

1. If a muqtadi misses some rakaat, at what point should he/she leave the jamaat and stand to continue the missed rakaat? Should he/she do it after the imam completes the 1st salaam or after the second salaam? 

2. For a muqtadi who has to missed a rakaat in jamaat salaah, should he remain quiet after the last tashahud behind the imaam and wait silently for the imaam's salaam to continue the missed rakaat, or can he/she recite durood and prayers after the last tashahud? 

3. If a person misses the 4 sunnah prayer prior to Zuhr or Jumah Salaah and joins the farz prayer in jamaat, does he/she needs to offer the missed sunnah prayer afterwards or not? If yes, then what's the correct sequence of offering the missed sunnahs? Should those be offered immediately after the farz jamaat salaah or after the 2 or 4 sunnah prayers that we usually pray after Jumah or Zuhr farz salaah? 

4. If a person makes sajdah while a couple of hair strands cover half the width of his forehead, would the sajdah be valid?