4 – Dalaalat Ul-iqtidaa’ (indication Of Requirement/necessity)
Its definition:
Dalaalat ul-Iqtidaa’ is the Dalaalah (indication) of the Lafzh upon a matter that its meaning does not stand up except by its Taqdeer (determination). This necessary Taqdeer (determination) could be dictated by the Shar’a or it could be dictated (i.e. made necessary) by the ‘Aql, either due to the Daroorah (necessity) of the Sidq (truthfulness) of the Mutakallim (source of speech/information) or due to the correctness (Sihhah) of the occurrence of the Lafzh (wording) through it.
Example:
Allah (swt) said:
Forbidden to you (for marriage) are: your mothers, your daughters, your sisters, your father's sisters, your mother's sisters, your brother's daughters, your sister's daughters… (An-Nisaa’ 23).
The Tahreem (prohibition) is not attributed to the essence of the mother herself or the essence of the daughter herself (specifically). As such, this Lafzh (wording) present within the Aayah dictates that before the Lafzh of ‘Ummahaatukum’ (your mothers) a necessary Lafzh is determined that the Shar’a has dictated and that is the prohibition of the Nikaah (marriage) of the Ummahaat, Banaat, Akhawaat… (mothers, daughters, sisters…). Therefore, the Dalaalat ul-Iqtidaa’ is not the Dalaalah (indication) of the Lafzh in its form or in its meaning but rather by way of an additional or extra matter that is determined or evaluated (Taqdeer) to exist within the speech so that what is required from the speech stands up (i.e. a correct meaning is understood) according to the Shar’a.