Kitab Al-Nawadir (uncommon reports)
Kamāl al-Dīn wa Tamām al-Niʿma|Volume 1|Book 2|Chapter 55
21- وَ بِهَذَا الْإِسْنَادِ عَنْ أَبَانِ بْنِ تَغْلِبَ قَالَ قَالَ أَبُو عَبْدِ اللَّهِ ع دَمَانِ فِي الْإِسْلَامِ حَلَالٌ مِنَ اللَّهِ عَزَّ وَ جَلَّ لَا يَقْضِي فِيهِمَا أَحَدٌ بِحُكْمِ اللَّهِ حَتَّى يَبْعَثَ اللَّهُ عَزَّ وَ جَلَّ- الْقَائِمَ مِنْ أَهْلِ الْبَيْتِ ع فَيَحْكُمُ فِيهِمَا بِحُكْمِ اللَّهِ عَزَّ وَ جَلَّ لَا يُرِيدُ عَلَى ذَلِكَ بَيِّنَةً الزَّانِي الْمُحْصَنُ يَرْجُمُهُ وَ مَانِعُ الزَّكَاةِ يَضْرِبُ رَقَبَتَهُ.
And through the same chain of narrators from Aban bin Taghlib that he said: Abi Abdullah عليه السلام said:
“Two bloods are made lawful by Allah, the Mighty and Sublime and no one can issue a judgment regarding them; till the time Allah, the Mighty and Sublime will send the Qaim from Ahlul Bayt عليه السلام and he will judge according to the command of Allah. Thus at that time testimony will not be needed. The married fornicator will be stoned to death and the one who refuses to pay the Zakat will be beheaded.”