Uhud, the Quran pointed out the lack of unity in their fold. The following are the Quranic words:
And God made good His promise to you when by His leave you were about to destroy your foes, until you showed
introspection in order to discover your own weakness and then to reassess your own planning.
Indeed, God has helped you on many occasions. On the day of Hunayn, when you took pride in your great numbers,
point that gave the other party the opportunity to overcome you.
According to the creation plan of God, our world is a world of challenge and competition. In this world, success is not the monopoly of any