we are yet to establish what you make of the position itself,
i am sorry brother. you started the thread and it is you who will have to first clarify your position.
i will, in sha'Allah try to answer all your questions - but we need clarity on your position and what you have understood from the texts of nawawi and the rest. not to mention 'khulasatu't taHqiq' of shaykh abdu'l ghani nablusi.
we need to be clear on our stand - for example, i am a Hanafi and my position is that of Hanafi fuqaha. of course, there are multi-layered explanations for what exactly do i mean by 'position of Hanafi fuqaha', and that will appear as we move on.
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you have started a thread, and quoted books of ulama. and also made a categorical statement that the "jumhur" position is that it is not wajib to follow any madh'hab. before we go further, i would like to understand your approach and understand if your argument is from a salafi/ghayr-muqallid viewpoint.
therefore, i asked two simple questions. [brother, please don't hash your answers; use numbers as it will be easy to reference].
1. are you saying that a common man can choose any ruling from any madh'hab at any time, regardless of necessity or seeking dispensation?
2. if the above is true, then what is the difference between us and the salafis?
while the answer to the first question is also vague, you have not answered the second question. it is crucial to know how do you differ from salafis. please understand that even salafis admit the sayings of fuqaha and attempt
tarjiH by choosing that which is closest to available hadith.
4. at this stage, the question is irrelevant, we are yet to establish what you make of the position itself, only then we can discuss practical implementations and hypothetical scenarios
it is not irrelevant.
if you are not able to answer this question, your claim of "not wajib to adhere to one madh'hab" becomes shaky. the scenario is not far-fetched-hypothetical either.
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let me give you another scenario.
firstly, according to your categorical statement, it is not wajib to adhere to a specific madh'hab according to jumhur [your claim]. in which case i can choose the non-jumhur position [implied by your statement] and insist that it is wajib to adhere to a specific madh'hab. which means, i don't have to accept any of your arguments or proofs. [if you blinked: it is by your own admission that i am free to choose any madh'hab and it will be valid].
secondly, what is the point of
tarjiH within a madh'hab and the umpteen instances fuqaha insist that this is the right opinion; and the muftis exhorted to give fatwa according to the
rajiH opinion. i can quote nawawi if you wish.
thirdly, you are advocating a book like
fiqhu's sunnah, except that your version of
fiqhu's sunnah would be even more liberal and chooses from various madhahib without any restraint. so do you advise common people to read and take from
fiqhu's sunnah. if not why?
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4. we are yet to establish what you make of the position itself
don't know why, but it sounds like an interrogation.
lastly, brotherly advice: don't restrict analysis or your judgement to quoted excerpts, without properly examining the context of the said statements.