The Qur'an states: "If someone shuts his eyes to the remembrance of the All-Merciful, We assign him a satan who becomes his bosom friend." (Surat az-Zukhruf, 36)
Allah reveals that those who turn their backs on religion become the friends of Satan. In another verse this fact is set out in these words: "Children of Adam! Do not let satan tempt you into trouble as He expelled your parents from the Garden, stripping them of their covering and disclosing to them their private parts. He and his tribe see you from where you do not see them. We have made the demons friends of those who do not believe." (Surat al-A'raf, 27) Satan brings those he makes friends with under his control and directs them in the ways of his own loathsome moral values.People who win the friendship of satan instead of the approval of Allah are deprived of a great many blessings. One of these losses is the way that such people never have true friends. Friendship is a blessing given by our Lord to those who take Him as their friend. As revealed in the verse, "Your friend is only Allah and His Messenger and those who believe: those who perform prayer and give the alms, and bow." (Surat al-Ma'ida, 55), Allah grants these people the friendship of devout believers.
Satan's friendship, on the other hand, leaves a person permanently alone. That is because satan tells those he adopts as friends that lies, deviance, rebellion, denial and hatred are pleasant things. People under the influence of satan approach those around them with just that moral understanding. They will primarily act according to their own interests and agenda. Such a person's best friend is him or herself. It is therefore impossible for such people to build true and permanent friendships as alluded to in the Qur'an.
In a society which does not live by the moral values of the Qur'an, it is very hard to find a reliable and sincere friend from whom to seek help, to whom to entrust property or valuables or money or to confide in. Furthermore, this situation has become so widely accepted that many regard it as an immutable fact of life.
It is impossible for people to be at ease in such an insecure environment. That is because even when a friend seems to have been found, there always exists the danger that these "friends" may in fact be acting out of self-interest. This scenario is therefore far removed from true friendship. Some people look upon one another with envy in relation to jobs, cars or homes which they may covet. They may wish to achieve superiority over the other. They therefore take advantage of even the slightest opportunity to locate each others' weaknesses and rise above one another.
People who behave with such an understanding are aware that they are living in a most untrustworthy and insincere environment. They are perfectly aware that they have no friends in the true sense of the word. Yet since they fail to seek a solution by living by the moral values of the Qur'an, they are unable to escape their predicament. Neither will these people who fail to turn to the true path have any friends in the Hereafter. They will find the same uneasy, insincere, insecure environment they experienced in the world but multiplied many times over in the Hereafter. The position in the Hereafter of those who take satan as their friend in this world is revealed by our Lord:
Therefore here today he has no friend. (Surat al-Haqqa, 35)
They will be bundled into it head first, they and the misled, and every one of Iblis's regiments. Arguing in it with one another, they will say: "By Allah, we were plainly misguided when we equated you with the Lord of all the worlds. It was only the evildoers who misguided us and now we have no one to intercede for us; we do not have a single loyal friend." (Surat ash-Shu'ara', 94-101)
Believers' friendships with one another are very powerful and long-lasting. That is because it is their sincere faith in and fear of Allah which bring believers together and make friends out of them. As revealed by our Lord in the verse:
Hold fast to the rope of Allah all together, and do not separate. Remember Allah's blessing to you when you were enemies and He joined your hearts together so that you became brothers by His blessing. You were on the very brink of a pit of the Fire and He rescued you from it. In this way Allah makes His signs clear to you, so that hopefully you will be guided." (Surah Al 'Imran, 103)
Believers are brothers. For that reason, the friendship based on faith continues, by the will of Allah, both in this world and for ever in the life of the Hereafter.
Whoever obeys Allah and the Messenger will be with those whom Allah has blessed: the prophets, the steadfast affirmers of truth, the martyrs and the righteous. What excellent company such people are! (Surat an-Nisa', 69)