Mishkāt al-anwār

The Messenger of God, may God give him blessings and peace, said:

God, ever blessed and exalted is He, says:

“Whoever treats a friend of Mine as an enemy, on him I declare war. My servant draws near to Me by nothing dearer to Me than that which I have established as a duty for him. And My servant does not cease to approach Me through supererogatory acts until I love him.

And when I love him, I become his hearing with which he hears, his sight with which he sees, his hand with which he grasps, and his foot with which he walks. And if he asks Me [for something], I give it to him. If he seeks refuge with Me, I place him under My protection.

In nothing do I hesitate so much as I hesitate [to take] the soul of a believer. He has a horror of death, and I have a horror of harming him.”

Reported by al-Bukhari, according to Abu Hurayra.