Hazrat Moulana Ashraf Ali Thaanwi (rahimahullah) once mentioned the following:
Nowadays, people very bravely explain the masaa-il of Fiqh. As for myself, then from all the sciences of Deen, I feel most fear when explaining the masaa-il of Fiqh (as it relates to the laws of sharee‘ah). The masaa-il of Fiqh are extremely intricate and sensitive (as every person is not capable of understanding the limits of Deen). Every person should definitely not get involved in trying to explain the masaa-il of Fiqh.
(Malfoozaat Hakeemul Ummat 1/93)
Source: Ihyaauddeen.co.za