Dhikr

"There is a group of Allah's angels who move about the streets
searching for the people who mention Allah Ta'ala name. When they find a
group of people doing that, they cover that group with their wings right up to the sky."

When these angels return to the heavens,

Allah Ta'ala asks : "What were My Servants saying?"

The Angels : "They were describing Your holiness and greatness, and were busy praising and
glorifying You".

Allah Ta'ala then asks : "Have they seen Me?"

The angels : "By Allah! They have not seen You."

Allah Ta'ala says : "What would they have done if they could see me?"
The angels reply : "They would then be even more busy in their worship,
glorification, and praise."

Then Allah Ta'ala asks : "What did they want from Me?"

The angels reply : "They asked You for Jannah (Heaven)."

Allah Ta'ala says : "Have they seen it?"
The Angels : "No, by You! They have not seen it."
Allah Ta'ala says : "What would they have done if they had seen it?"
The angels answer : "Had they seen it, they would desire it more eagerly,
and would work harder to deserve it."

Allah Ta'ala asks : "From what thing did they want Me to protect them?"
The angels answer : "They wanted to be protected from Hell."
Allah Ta'ala says : "Have they seen it?"
The Angel answer : "No, by You! They have not seen it."

Allah Ta'ala says : "What would they have done if they had seen it?"
The angels answer : "Had they seen it, they would have feared it and run
from it even more."

Then Allah Ta'ala says : "Be My witnesses: I have forgiven them!"
One of the angels then says : "But among them was a person who is not one of them. He had simply come for something he needed."

Allah Ta'ala says : "I have forgiven him too, just because he happened to sit with them. Anyone who sits with those people will not be a loser."

(Sahih Bukhari Volume 8:417)