"Indeed in that is a sign"; that is, a lesson for whoever takes heed and fears that what befell them might befall him.
Surah ash-Shu'ara, from verse 69 to verse 83.
﴿إِن فِي ذَلِك لآيَة﴾ لَعِبْرَةً لِمَنِ اعْتَبَرَ وَحَذِرَ أَنْ يَنْزِلَ بِهِ مَا نَزَلَ بِهِمْ.
سُورَة الشُّعَرَاء من (آيَة ٦٩ آيَة ٨٣).