Taqlid means acting
according to the opinion of the jurist (mujtahid) who has all the necessary
qualification to be emulated. So you do what the mujtahid's expert opinion says
you should do, and refrain from what his expert opinion says you should refrain
from without any research [in Islamic sources] on your part. It is as though you
have placed the responsibility of your deeds squarely on his shoulders.
Among the conditions which must be found in a jurist (mujtahid) who can be followed is that he must be the most learned (al-a'lam) jurist of his time and the most capable in deriving the religious laws from the appropriate sources.