It is narrated from Hazrat Amrah bint Abdur Rahman that two men exchanged insults during the time of Sayyiduna Umar (may Allah be pleased with him). One said to the other: "By Allah! My father was not an adulterer, nor was my mother an adulteress." Sayyiduna Umar (may Allah be pleased with him) consulted about this matter. One person said: "What is wrong in this? He has mentioned the virtues of his father and mother." And the people said: "Was this the only virtue of his father and mother? In our view, he should be given the hadd punishment for qadhf." Sayyiduna Umar (may Allah be pleased with him) gave him the hadd punishment for qadhf: (80) lashes.

Imam Malik, may Allah have mercy on him, said: In our view, there is no hadd except in cases of qadhf (false accusation of adultery), or nafiy (denial, meaning to deny lineage, for example, to say, "You are not your father's son"), or in ta'reez (that is, to insult someone through insinuation or indirect reference, as has just been mentioned). In all these cases, the full hadd will be obligatory, but it is necessary that it becomes known that the intention behind the ta'reez was nafiy or qadhf.

Imam Malik, may Allah have mercy on him, said: In our view, the ruling is that when someone denies another from his own father, the prescribed punishment (hadd) will be obligatory, even if his mother is a slave woman.