Wiping urine from the skin

Q: Please can you advise me with regards to whether when urine falls on my skin and I wipe my skin and ensure it is dry. If I subsequently perspire does my clothes as well as all the places I sit on (bed, chair etc) become napaak and do I have to clean these surfaces by wiping them thrice?

Is possessing a car a necessity?

Q: To possess a car in the place where I stay is a luxury simply because of the public transport (taxis and buses) been so well established. Nevertheless, it makes life much easier to possess a car because taxis are expensive and buses takes abit longer. In this situation does possessing a car still fall under hawaaij al asliyyah?

Salaatul Lail

Q: In a book I acquired in 1978 called kitaab-us salaah printed by the young men's Muslim association which has been my guide ever since. I have now recently discovered the performance of Salaatul lail which is not mentioned in this book nor have I performed it previously. Can Mufti please throw some light on this.

When to calculate Zakaat

Q:  I have a monthly income of R10 000 which is paid on the 1st of every month. At the end of the month I barely have anything left. I also have no savings. I was previously wealthy and also I never went insolvent. I always took out my zakaat in the first week of Ramadhan. If the first week of Ramadhan falls on the 1st week of the gregorian calender when I receive my salary, is zakaat waajib on me?