Arabic hadith text
حَدَّثَنِي يَحْيَى، عَنْ مَالِكٍ، عَنْ نَافِعٍ، عَنْ عَبْدِ اللَّهِ بْنِ عُمَرَ، أَنَّ رَسُولَ اللَّهِ صلى الله عليه وسلم نَهَى عَنْ بَيْعِ حَبَلِ الْحَبَلَةِ ‏.‏ وَكَانَ بَيْعًا يَتَبَايَعُهُ أَهْلُ الْجَاهِلِيَّةِ كَانَ الرَّجُلُ يَبْتَاعُ الْجَزُورَ إِلَى أَنْ تُنْتَجَ النَّاقَةُ ‏.‏ ثُمَّ تُنْتَجَ الَّتِي فِي بَطْنِهَا ‏.‏
Translation

Yahya related to me from Malih from Nafi from Abdullah ibn Umarthat the Messenger of Allah, may Allah bless him and grant him peace,forbade the transaction called habal alhabala. It was a transactionwhich the people of Jahiliya practised. A man would buy the unbornoffspring of the unborn offspring of a she-camel.