Hadith 528
528 - حَدَّثَنَا الْحُمَيْدِيُّ قَالَ: ثنا سُفْيَانُ قَالَ: ثنا عَاصِمُ بْنُ كُلَيْبٍ، عَنْ أَبِيهِ، عَنِ ابْنِ عَبَّاسٍ «أَنَّ النَّبِيَّ صَلَّي اللهُ عَلَيْهِ وَسَلَّمَ أَمَرَ رَجُلًا حِينَ لَاعَنَ بَيْنَ الْمُتَلَاعِنَيْنِ أَنْ يَضَعَ يَدَهُ عَلَي فِيهِ عِنْدَ الْخَامِسَةِ» وَرُبَّمَا قَالَ سُفْيَانُ فِيهِ فَإِنَّهَا مُوجِبَةٌ
Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) narrates: When the Prophet Muhammad (peace and blessings be upon him) had two people perform li'an (mutual cursing), when the man was about to say the fifth statement, the Prophet (peace and blessings be upon him) instructed a person to place his hand over his mouth. The narrator named Sufyan sometimes narrated these words in this narration: "Indeed, this (fifth statement) will make it obligatory (i.e., if he is lying, the punishment will become necessary)."
