(61) باب بَيْعِ الْغَرَرِ وَحَبَلِ الْحَبَلَةِ
Narrated `Abdullah bin `Umar:
Allah's Messenger (ﷺ) forbade the sale called 'Habal-al-Habala which was a kind of sale practiced in the Pre- Islamic Period of ignorance. One would pay the price of a she-camel which was not born yet would be born by the immediate offspring of an extant she-camel.
Reference: Sahih al-Bukhari 2143
In-book reference: Book 34, Hadith 95
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 34, Hadith 353