Sahih Bukhari
Sahih Bukhari Volume 008, Book 077, Hadith Number 596.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 77. Divine Will (Al-Qadar)
Narated By Ibn 'Abbas : The Prophet ; was asked about the offspring of the pagans. He said, "Allah knows what they would have done (were they to live)."