(8) باب السَّلَمِ إِلَى أَنْ تُنْتَجَ النَّاقَةُ
Narrated `Abdullah:
The people used to sell camels on the basis of Habal-al-Habala. The Prophet (ﷺ) forbade such sale. Nafi` explained Habal-al-Habala by saying. "The camel is to be delivered to the buyer after the she-camel gives birth."
Reference: Sahih al-Bukhari 2256
In-book reference: Book 35, Hadith 16
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 35, Hadith 457