Master Choa Kok Sui: Meditation über Zwei Herzen, islamische Version in englisch
Prayers & Contemplations on Compassion & Peace by Abdul Wadud Amin

The message of the Prophet, Sall-Allhu alayhi wa sallam said:
"Have mercy on all the people.
And do it because you yoursefl need the mercy of Allah.
Be merciful to the orther creations so the Creator will have mercy on you.
Your mercy should see no bounds. It should reach all human beings."

The Bukhari and Muslim states:
"Those who have no mercy on other human beings will not receive mercy of Allah."
(Please note that is this second hadith the word used is "nas". This means mankind not just believers.)

Here is the hadith  of Tirmidhi, who reports that the prophet Sall-Allahu alayhi wa sallam said:
"Have mercy on those who are on earth, the One in heavens will have mercy on you."

Peace be upon you!