The Adillah (evidences) Of Those Who Do Not Adopt Al-masaaalih Al-mursalah
1 – The Maslahah that does not have a specific (Khaass) Daleel for it from the Shar’a represents a kind of relish and desire. Al-Ghazaaliy said: “We know definitely (Qat’an) that the ‘Aalim should not judge by his desire and appetite without paying regard to the indications of the Adillah (evidences). Al-Istihsaan without looking into the Adilllah of the Shar’a represents passing a judgement by the desire alone (or purely)” and in respect to Al-Masaalih Al-Mursalah he said: “And if the Shaari’ does provided evidence for it then it is like the Istihsaan”.
2 – If the Masaalih are Mu’tabarah (considered) then they enter into the generalness (‘Umoom) of Al-Qiyaas and if they are not Mu’tabarah then they are not included within it. In addition, it is not valid to claim that there are considered Masaalih in which there is no text or Qiyaas because that implies that the Shar’iyah texts are deficient and incomplete which is a negation of the Qawl of Allah Ta’Aalaa:
Today I have completed your Deen for you and have perfected by favour upon you and have chosen for you Islaam as a Deen (Al-Maa’idah 3).
And negates His speech Ta’Aalaa:
And We have sent down to you the Book as clarification for all things and as guidance and mercy and good tidings for the Muslims (An-Nahl 89).
3 – Taking the Masaalih Al-Mursalah without reliance upon a Shar’iy text leads to letting the Ahkaam Ash-Shar’iyah loose (or out of control) and oppression or injustice befalling the people in the name of the Maslahah (interest) just as some of the oppressive rulers have done. In respect to that Ibn Taymiyyah said: “It is from the direction of the Masaalih (interests) that a great instability has occurred in the matter of the Deen and many of the leaders and servants (i.e. people) saw (certain) interests and so they sought them based upon this foundation. These could include that which is prohibited in the Shar’a which they were unaware of...” (Majmoo’ah Ar-Rasaa’il Wa-l-Masaa’il part 5 page 22).
4 – If we were to take Al-Masaalih Al-Mursalah as an independent origin or foundation (Asl) in itself that would lead to different Ahkaam arising in different lands and even differences amongst the people within a single issue. A matter could be Haraam in someone’s view in a land whilst the same issue could be Mubaah in another person’s view in another land. This is whilst this is not the way of the eternal Ahkaam Ash-Shar’iyah that incorporate and comprehensively deal with all of the people in all ages until the Day of Judgement.