أَمْ حَسِبْتُمْ أَنْ تَدْخُلُوا الْجَنَّةَ وَلَمَّا يَأْتِكُمْ مَثَلُ الَّذِينَ خَلَوْا مِنْ قَبْلِكُمْ ۖ مَسَّتْهُمُ الْبَأْسَاءُ وَالضَّرَّاءُ وَزُلْزِلُوا حَتَّىٰ يَقُولَ الرَّسُولُ وَالَّذِينَ آمَنُوا مَعَهُ مَتَىٰ نَصْرُ اللَّهِ ۗ أَلَا إِنَّ نَصْرَ اللَّهِ قَرِيبٌ

Or did you suppose you should enter Paradise without there had come upon you the like of those who passed away before you? They were afflicted by misery and hardship and were so convulsed, that the Messenger and those who believed with him said, 'When comes God's help?' Ah, but surely God's help is nigh.