Does the statement "You are a son of a Haram (illegitimate child)" constitute qadhf (false accusation of unchastity), and what are the resulting legal implications?

The slander that necessitates the prescribed punishment (hadd) is the explicit accusation of adultery. As for the saying, "son of a whore" (ibn al-haram (definition)), it is not an explicit accusation but rather an allusion (kinayah). Scholars have differed regarding the necessity of the hadd punishment for allusive slander. The speaker of such a phrase is subject to discretionary punishment (ta'zir) if the hadd is not applied. It should be noted that the common usage of the word among people has an effect; if this word is widely used without intending its literal meaning, then it is not considered slander that necessitates the hadd punishment.