أَلَمْ تَرَ أَنَّ اللَّهَ أَنزَلَ مِنَ السَّمَاء مَاء فَسَلَكَهُ يَنَابِيعَ فِي الْأَرْضِ ثُمَّ يُخْرِجُ بِهِ زَرْعًا مُّخْتَلِفًا أَلْوَانُهُ ثُمَّ يَهِيجُ فَتَرَاهُ مُصْفَرًّا ثُمَّ يَجْعَلُهُ حُطَامًا إِنَّ فِي ذَلِكَ لَذِكْرَى لِأُوْلِي الْأَلْبَابِ
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سورة الزمر
(39/21) Have you not seen that Allah sends down water from the sky, and then makes it to join the springs? Then brings forth therewith crops of various colors. Then it withers so that you see it yellow. Then He makes it a dry stick. Most surely there is indeed a reminder (lesson) for ûli’l elbâb (the owners of the continuous Dhikr, the owners of the secret treasures of Allah).
Surah Az-Zumar