It was narrated that ‘Ali ؓ said - I think he attributed it to the Prophet ﷺ “Whoever tells a lie about his dream will be ordered to tie a grain of barley on the Day of Resurrection.”
مَنْ كَذَبَ فِي حُلْمِهِ كُلِّفَ عَقْدَ شَعِيرَةٍ يَوْمَ الْقِيَامَةِ