What are the keys of the Unseen?

All perfect praise be to Allaah, the Lord of the worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad, sallallaahu ‘alayhi wa sallam, is His Slave and Messenger.

Allaah The Almighty mentioned the keys of the Unseen in the verse (which means): {Indeed, Allaah [alone] has knowledge of the Hour and sends down the rain and knows what is in the wombs. And no soul perceives what it will earn tomorrow, and no soul perceives in what land it will die. Indeed, Allaah is Knowing and Acquainted.} [Quran 31:34]

The Prophet, sallallaahu ‘alayhi wa sallam, said that there are five keys of the Unseen and no one knows them except Allaah The Almighty: what will happen tomorrow, what will be in the wombs, when it will rain, at what place one will die and when the Hour will come.  [Al-Bukhari]

Allaah Knows best.