The World Federation One Stop Fiqh

Ruling 1514

A person who is hired to perform the qaḍāʾ prayers of a deceased person must either be a mujtahid,63 or he must perform prayers according to the fatwa of someone whom it is valid to follow [i.e. do taqlīd of],64 or he must act on precaution if he knows fully the situations in which one can exercise precaution.

63 A mujtahid is a person who has attained the level of ijtihād, qualifying him to be an authority in Islamic law. Ijtihād is the process of deriving Islamic laws from authentic sources.
64 The laws of taqlīd are mentioned in the first chapter of the present work.