Hadith.4851 - Ahmad ibn Muhammad ibn Abi Nasr Al-Bazanti narrated from Abdul Karim ibn Amr, from Abu Basir, from Abu Abdullah عليه السلام, who said:
"Lian (the mutual curse between spouses) does not take place unless the man has consummated the marriage with his wife."
Lian only occurs when the husband denies the paternity of a child. If a man accuses his wife of adultery without denying his child, he is to be lashed eighty times. However, if a man accuses his wife of adultery and says, "I saw a man between her legs having intercourse with her," and he also denies the child, then if he brings forward four just witnesses, she is to be stoned. If he cannot present four witnesses, he must perform lian against her. If he refuses to perform lian, he is subjected to the punishment for false accusation (qadhf), which is eighty lashes. But if he performs lian, the punishment is lifted from him.
