PROPHET MUHAMMAD’S LETTER TO HERACLIUS

In the Name of Allah, the Merciful, the Most Merciful.
From: The Prophet of Allah
To: Heraclius, the greatest of Romans
Peace be upon those who follow Divine Guidance.
I therefore invite you to embrace Islam.
Surrender to Allah and live in peace.
Allah will doubly reward you,
but if you turn away,
the sin of the Arians will rest upon you."
Then he quoted the Koran:

'Say: People of the Book!
(Jews, Nazarenes and Christians)
let us come to a common word
between us and you,
that we will worship none except Allah,
that we will associate none with Him,
and that none of us take others for lords beside Allah.’
If they turn away,
say:‘Bear witness that we are Muslims’ Koran 3:64