Encyclopedia of Prophetic Hadiths

"Islam is built on five: testifying that there is no god but Allah and that Muhammad is His slave and Messenger, establishing prayer, giving Zakah, performing Hajj to the (Sacred) House, and fasting Ramadān."

"The keys of the unseen are five {Indeed, Allah has the knowledge of the Hour. He sends down the rain and knows what is in the wombs. No soul knows what it will do tomorrow, nor does any soul know in which land it will die. Indeed, Allah is All-Knowing, All-Aware.}"