Ka'b reported that Messenger of Allah ﷺ said that the similitude of a believer is that of a standing crop in a field which is shaken by wind and then it comes to its original position but it stands at its roots. The similitude of a non-believer is that of a cypress tree which stands on its roots and nothing shakes it but it is uprooted (with) one (violent stroke).

قَالَ رَسُولُ اللَّهِ ﷺ مَثَلُ الْمُؤْمِنِ كَمَثَلِ الْخَامَةِ مِنَ الزَّرْعِ تُفِيئُهَا الرِّيحُ وَتَصْرَعُهَا مَرَّةً وَتَعْدِلُهَا أُخْرَى حَتَّى تَهِيجَ وَمَثَلُ الْكَافِرِ كَمَثَلِ الأَرْزَةِ الْمُجْذِيَةِ عَلَى أَصْلِهَا لاَ يُفِيئُهَا شَىْءٌ حَتَّى يَكُونَ انْجِعَافُهَا مَرَّةً وَاحِدَةً