Arabic (Original)
حَدَّثَنَا الْفَضْلُ بْنُ دُكَيْنٍ حَدَّثَنَا ابْنُ أَبِي غَنِيَّةَ عَنْ مُحَمَّدِ بْنِ مُهَاجِرٍ عَنْ أَبِيهِ عَنْ أَسْمَاءَ بِنْتِ يَزِيدَ قَالَتْ سَمِعْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَقُولُ لَا تَقْتُلُوا أَوْلَادَكُمْ سِرًّا فَإِنَّ قَتْلَ الْغَيْلِ يُدْرِكُ الْفَارِسَ فَيُدَعْثِرُهُ عَنْ ظَهْرِ فَرَسِهِ.
English Translation
Al-Fadl ibn Dukayn narrated to us, Ibn Abi Ghaniyyah narrated to us, from Muhammad ibn Muhajir, from his father, from Asma' bint Yazid, who said: I heard the Messenger of Allah (peace and blessings of Allah be upon him) say: "Do not kill your children secretly, for the ghail (nursing while pregnant) catches up with the horseman and throws him off his horse."