For instance...

For instance, if the validity (hujjiyyah) of al-shuhrat al-fatwa’iyyah or khabar al-wahid or al-'ijma` al-manqul is presupposed in such a way that despite not causing presumption they should still be regarded as hujjah, then, according to this hypothesis, the derivation of ahkam of the Shari'ah by means of al­-shuhrat al-fatwa’iyyah, khabar al-wahid and al-ijma'al-manqul would not be ijtihad - since we have supposed that they do not create presumption - and in the light of the said definitions ijtihad means attain­ment of presumption.

If, in the above-mentioned definitions, should `presumption' be taken to include both trustworthy and untrustworthy presumptions - as it obviously does - the definition will include untrustworthy presump­tion also, while the attainment of presumption regarding a hukm of the Shari’ah by means of…