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Surah 3. Aal-Imran
Ayah 102 - 103
102يَـٰٓأَيُّهَا ٱلَّذِينَ ءَامَنُوا۟ ٱتَّقُوا۟ ٱللَّهَ حَقَّ تُقَاتِهِۦ وَلَا تَمُوتُنَّ إِلَّا وَأَنتُم مُّسْلِمُونَ
103وَٱعْتَصِمُوا۟ بِحَبْلِ ٱللَّهِ جَمِيعًا وَلَا تَفَرَّقُوا۟ ۚ وَٱذْكُرُوا۟ نِعْمَتَ ٱللَّهِ عَلَيْكُمْ إِذْ كُنتُمْ أَعْدَآءً فَأَلَّفَ بَيْنَ قُلُوبِكُمْ فَأَصْبَحْتُم بِنِعْمَتِهِۦٓ إِخْوَٰنًا وَكُنتُمْ عَلَىٰ شَفَا حُفْرَةٍ مِّنَ ٱلنَّارِ فَأَنقَذَكُم مِّنْهَا ۗ كَذَٰلِكَ يُبَيِّنُ ٱللَّهُ لَكُمْ ءَايَـٰتِهِۦ لَعَلَّكُمْ تَهْتَدُونَ
[102-103] O Believers, fear Allah as He should be feared and see that you do not die save as true Muslims82 - Hold fast together to Allah's cord83 and Iet nothing divide you. Remember the favour of Allah upon you, when you were enemies to one another, then He united your hearts, and by His grace, you became like brothers, and you were on the brink of the abyss of Fire and He rescued you from it.84 Thus does Allah make His signs clear to you so that you may find the right path to true success by these.85
82That is, "Be loyal and obedient to Allah up to your last breath."
83"Allah's cord" is the way of life prescribed by Him. It is a "cord" because it keeps intact the relations of the Believers with Allah and also binds and unites them into a community. "Hold fast together to Allah's cord" implies that the Muslims should give the greatest importance to Allah's Way, and should make it the centre of all their interests, and exert their utmost to establish it and co-operate with one another for its service. When and if they let loose this cord and deviate from its basic principles, they would inevitably suffer from disunity and would be divided into sections and sub-sections, like the communities of the former Prophets. As a consequence of this, they would mat with disgrace both in this world and in the Next.
84This refers to that horrible state of the Arabs from which they were rescued by Islam. Before Islam, their clans were divided into hostile camps, who went to war for frivolous reasons. Human life had lost its sanctity and people were killed without any pangs of conscience. The fire of enmity would have burnt to ashes all the Arabs, if blessed Islam had not rescued them from it. This blessing had appeared in a tangible form at AI-Madinah at the time of the revelation of these verses. The two clans-Aus and Khazraj-who had been enemies for years and had been involved in bitter feuds and bloody battles, became brethren after they embraced Islam. Not only this: they also showed that spirit of sacrifice for the rehabilitation of the refugees from Makkah that has no parallel in history.
85That is to say, "If you have eyes to see, you can yourselves judge whether your welfare lies in holding fast to Allah's way or in discarding it and reverting to the old ways of ignorance, and whether your well-wishers are Allah and His Messenger or the Jews and the hypocrites and the polytheists who are trying to revert you to your former condition.