عَنْ عَمْرِو بْنِ شُعَيْبٍ عَنْ أَبِيهِ عَنْ جَدِّهِ قَالَ: قَامَ رَجُلٌ فَقَالَ: يَا رَسُولَ اللَّهِ إِنَّ فَلَانًا ابْنِي عَاهَرْتُ بِأُمِّهِ فِي الْجَاهِلِيَّةِ فَقَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «لَا دِعْوَةَ فِي الْإِسْلَامِ ذَهَبَ أَمْرُ الْجَاهِلِيَّةِ الْوَلَدُ لِلْفِرَاشِ وَلِلْعَاهِرِ الْحَجَرُ» . رَوَاهُ أَبُو دَاوُد

Ibn ‘Abbas said that when the Prophet ordered a man and wife to invoke curses regarding one another, he ordered a man to put his hand on his mouth when he came to the fifth utterance, saying that it would be the deciding one. Nasa’i transmitted it.