وَكَذَلِكَ أَنزَلْنَاهُ قُرْآنًا عَرَبِيًّا وَصَرَّفْنَا فِيهِ مِنَ الْوَعِيدِ لَعَلَّهُمْ يَتَّقُونَ أَوْ يُحْدِثُ لَهُمْ ذِكْرًا
“Thus have We sent down an Arabic Quran and explained therein some of the threats, that they may safeguard themselves against evil, or that it may serve as a reminder to (warn) them”
Imam Sadiq (as) said, “Or that it may serve as a reminder to (warn) them.” This (verse) refers to what will happen between the Qaem (as) and Sufyani. (Tafseer Ayyashi volume 2 page 65)