
Allah doth know what every female (womb) doth bear, by how much the wombs fall short (of their time or number) or do exceed. Every single thing is before His sight, in (due) proportion.
The Concept of Time – A Quranic and Scientific Context – Islamic Web Library
Narrated Ibn `Umar:
Allah’s Messenger (ﷺ) said, “The keys of Unseen are five which none knows but Allah: None knows what will happen tomorrow but Allah; none knows what is in the wombs (a male child or a female) but Allah; none knows when it will rain but Allah; none knows at what place one will die; none knows when the Hour will be established but Allah.” (See The Qur’an 31:34.”)
References:
Reference | : Sahih al-Bukhari 4697 |
In-book reference | : Book 65, Hadith 219 |
USC-MSA web (English) reference | : Vol. 6, Book 60, Hadith 219 |
(deprecated numbering scheme) |