What is understood from this is that a wig can be worn under the Khimaar or inside the house for instance, doesn't the wig take the ruling of Wasl (linking hair extensions to the original hair)?

I read what you wrote regarding wearing of the trousers in front of relatives, and that it is not Shariah compliant, however you did not provide an evidence for this...but you said that it is from Tabarruj; and as what we have learnt the meaning of Tabarruj is anything that attracts the attention. However, how a society views Tabarruj differs from one country to another;

the following sentence was mentioned in the book Usul al-Fiqh: "It should not be said here that Allah has obliged the Zakat, provision [Nafaqah], and liabilities [Damanaat] upon the child and the insane and so therefore they are legally responsible [Mukallaf] because they have been made responsible for some of the legal rulings.

 it is mentioned in the Holy Quran that Allah (swt) responds to the supplication (dua'a) of the person if he supplicates to Him (swt). The Sunnah also showed us that the response to the supplication (dua'a) could be sooner or later, or is replaced with something better than it in Dunya or Akhira. The Hizb shows in the book of The Concepts of Hizb ut Tahrir that supplication (duaa) achieves…