Arabic (Original)
حَدَّثَنَا حَمَّادُ بْنُ خَالِدٍ قَالَ ثَنَا مُعَاوِيَةُ يَعْنِى ابْنَ صَالِحٍ عَنِ الْمُهَاجِرِ مَوْلَى أَسْمَاءَ بِنْتِ يَزِيدَ الْأَنْصَارِيَّةِ قَالَ سَمِعْتُ أَسْمَاءَ بِنْتَ يَزِيدَ تَقُولُ سَمِعْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ لَا تَقْتُلُوا أَوْلَادَكُمْ سِرًّا فَوَالَّذِي نَفْسِي بِيَدِهِ إِنَّهُ لَيُدْرِكُ الْفَارِسَ فَيُدَعْثِرُهُ قَالَتْ قُلْتُ مَا يَعْنِي قَالَ الْغِيلَةُ يَأْتِي الرَّجُلُ امْرَأَتَهُ وَهِيَ تُرْضِعُ.
English Translation
Hammad ibn Khalid narrated to us, Mu'awiyah, meaning Ibn Salih, narrated to us, from al-Muhajir, the freed slave of Asma' bint Yazid al-Ansariyyah. He said: I heard Asma' bint Yazid say: I heard the Prophet (peace and blessings of Allah be upon him) say: "Do not kill your children secretly, for by the One in Whose hand is my soul, it (ghailah) catches up with the horseman and throws him down." She said: I said, "What does he mean?" He said: "The ghailah - when a man has intercourse with his wife while she is breastfeeding."