'Abdullah (b. 'Umar) (Allah be pleased with him) said that Allah's Messenger (ﷺ) forbade the transaction called habal al-habala.
Sahih Muslim Book 21, Hadith 9
← Previous Hadith Abu Huraira (Allah be pleased with him) reported that Allah's Messenger (ﷺ) forbade a transaction determined by throwing stones, and the type which involves some uncertainty.

Sahih Muslim Book 21, Hadith 8 Next Hadith → Ibn 'Umar (Allah be pleased with them) reported that the people of pre-Islamic days used to sell the meat of the slaughtered camel up to habal al-habala. And habal al-habala implies that a she-camel should give birth and then the (born one should grow young) and become pregnant. Allah's Messenger (ﷺ) forbade them that (this transaction).

Sahih Muslim Book 21, Hadith 10