Sayyiduna Ali ibn Abi Talib (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said: Whoever lies with his eyes, on the Day of Resurrection he will be afflicted with the punishment of tying a knot between the two ends of a barley grain.

In another narration from Sayyiduna Ali (may Allah be pleased with him), it is reported that the Noble Prophet (peace and blessings be upon him) said: Whoever tells a false dream will be made to suffer on the Day of Resurrection by being ordered to tie a knot in a barley grain.