Dajjaal

Q: This is far distant in my thoughts but I heard there is a hadith its like about the prophet doubted not so sure or the companions I don't really remember a man they thought was the dajjal (I don't remember well). I dont know if they said that but anyways if they did isn't the dajjal like has 2 eyes but I think 1 is defective. Also i think maybe not that there are 2 scholarly opinions saying that one dajjal is a man or I don't really know. I need some clarification.

Method of making ghusal

Q: Please can  you tell me am I making ghusal right as I was thought this way in school.

  1. Make niyyah
  2. Wash private parts
  3. Wash hands
  4. Make complete wudu
  5. Pour water over entire body 3 times.

I have been told this is incorrect. An is it the same for males?

Repeating a Salaah in which a waajib was left out

Q: In some kitaabs like taalifat rashidiyyah it is written that it is mustahab to repeat the salaah prayed behind a faasiq (the one who trim or shave less than a fist lenght) and in ahsanul fatawa it is writen that if the salaah of a muqtadi become makrooh due to the salaah of imaam become makrooh. What is understood is that it is mustahab for the muqtadi to repeat the salaah prayed behind a faasiq. Please confirm?

Chipping a car

Q: Is "chipping" a car (i.e paying a company to change the software on a car, to make the car faster) permissible? Or would this fall under wastage of money?

Wearing a Topi

Q: I require the following clarifications regarding wearing a Topi.

  1. Did Rasul Allah Sallallaahu Alaihiwa Sallam and the Sahaabah Radhi Allahu ​Anhum nurture the habit of wearing Topi during their lifetime? Sahih Bukhari 275 mentions of an occasion when Rasul Allah Sallallaahu Alaihiwa Sallam led the Jamaath having just completed his Ghusl with water dripping from his hair. Similarly other references that Rasul Allah Sallallaahu Alaihiwa Sallam did not wear Topi are mentioned in ​Nasa'i -5219, 4980,  Muslim - 4666, 4680, 4270 Bukhari - 3548, 352, 353 and Abu Dawood - 592, 3658.
  2. Did not this practise actually originate in Turkey when it became the capital of the Islamic empire, whose citizens had a traditional habit of wearing the tall and round Topi?
  3. Why do Muslims in many countries offer Salaah without the Topi? Are they going against the Deen? Is their Salaah not valid? 
  4. Then why do not Muslims who go on Haj/Umrah not wear a Topi (covering their head) by un-stitched cloth like they wear for Ihram?
  5. So, going by the above Sahih Hadith, is it still mandatory to wear the Topi ? Is it not a Bid'ah?