It was narrated from Ibn `Umar that the Messenger of Allah (ﷺ) forbade selling the offspring of the offspring that is still in the womb of a camel. Grade: Sahih (Darussalam) [, al-Bukhari (2143) and Muslim (1514)] (Darussalam) Reference : Musnad Ahmad 394 In-book reference : Book 3, Hadith 4
حَدَّثَنَا إِسْحَاقُ بْنُ عِيسَى، أَنْبَأَنَا مَالِكٌ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، رَضِيَ اللَّهُ عَنْهُ أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ نَهَى عَنْ بَيْعِ حَبَلِ الْحَبَلَةِ.