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?

Zakaat on prepaid expenditure and deposits

Q: Please advise if the following items (which are treated as assets in the Annual Financial Statement) are included under zakaatable assets for the purposes of calculating your zakaat:

1)Prepaid Expenditure

2)Deposits held by Suppliers or service providers eg. The municipality

Will "Income received in advance" (normally treated as a liability in the Annual Financial Statement) be included in determining your zakaat?

Saahib-e-tarteeb remembering at the time of Jumuah that he had missed out his fajr Salaah

Q: A person who is "saahibut tarteeb" was sitting in the jumuah bayaan when he realised that he hadn't performed fajr. He then planned that he will read his qada when everyone is reading their sunnats after the bayaan, before the khutba. However he had a dire need to go to the toilet and only returned when the Imaam was on the mimbar and azaan was called. So he sat for the khutba, read jumuah and performed his fajr qada after the jumuah salaah.

  1. Is what he did correct?
  2. If not, what must he do to rectify his actions?

Extended warranty

Q: I intend to purchase a car that has a warranty. The dealer offered to extend the warranty by 5 years for an additional amount of R3000. The warranty covers towing and fixing if the car breaks down and replacement of parts. I notice that the policy is with an insurance company. Is this acceptable?