As to the cause of this and the next verse, it is narrated that: ``One day two men from the hostile tribes of Aws and KHAZRAJ, named SAALABEH and ASSAD-IBN-ZARAREH encountered, and began to boast and mention the honour and pride that their tribes had attained after Islam and their conversion''. One of them said: ``KHAZIMA whose witness counts for two testimony, and also HANZALEH who took ablution by angels, belongs to our clan.''

      The other said, four men of our tribe have done the greatest service to Islam and Muslims by teaching and preaching Qurän. He named them as: ``ABI-IBN-KAAB, MOAZ-IBN-JABAL and ZAID-IBN-SAABIT and ABUZAID.''. Besides those, he added that; ``SAAD-IBN-EBAADEH the chief of Medina and greatest of orators was theirs.'' The boastings and disputes led to a quarrel, and the wrangle stretched its legs to their tribes, and once again the conflict and the dead enmity revived and the two tribes took arm against one another!

      When the prophet was informed of that, he hastened towards the tribes, and by an effective speech and wise management put out the fire, made peace, and renewed their religious brotherhood. to this effect the above verse revealed, and by a general commandment enjoined Muslims to grasp and stick to the unbreakable rope of rescue and salvation that God has stretched down to us. Here all Muslims are invited to unite and divide not, through holding fast to Islam and Qurän, which is called the rope of Allah.