It is narrated from Sayyiduna Ibn Abbas (may Allah be pleased with them both) that the Prophet (peace and blessings be upon him) said: "Whoever falsely claims to have seen a dream that he did not see will be ordered to tie a knot between two barley grains; whoever makes an image will be ordered to breathe a soul into it; and whoever listens to the talk of people while they are fleeing from him (to keep it hidden), molten lead will be poured into his ear."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 11873