The Quran root ف ك ر f-k-r

يَسْأَلُونَكَ عَنِ الْخَمْرِ وَالْمَيْسِرِ قُلْ فِيهِمَا إِثْمٌ كَبِيرٌ وَمَنَافِعُ لِلنَّاسِ وَإِثْمُهُمَا أَكْبَرُ مِن نَّفْعِهِمَا وَيَسْأَلُونَكَ مَاذَا يُنفِقُونَ قُلِ الْعَفْوَ كَذَٰلِكَ يُبَيِّنُ اللَّهُ لَكُمُ الْآيَاتِ لَعَلَّكُمْ تَتَفَكَّرُونَ ٢١٩

تَتَفَكَّرُونَ tatafakkarūna · ponder

They ask you about wine and gambling. Say, "In them is great sin and [yet, some] benefit for people. But their sin is greater than their benefit." And they ask you what they should spend. Say, "The excess [beyond needs]." Thus Allāh makes clear to you the verses [of revelation] that you might give thought (Surah Al-Baqarah, 2:219)

أَيَوَدُّ أَحَدُكُمْ أَن تَكُونَ لَهُ جَنَّةٌ مِّن نَّخِيلٍ وَأَعْنَابٍ تَجْرِي مِن تَحْتِهَا الْأَنْهَارُ لَهُ فِيهَا مِن كُلِّ الثَّمَرَاتِ وَأَصَابَهُ الْكِبَرُ وَلَهُ ذُرِّيَّةٌ ضُعَفَاءُ فَأَصَابَهَا إِعْصَارٌ فِيهِ نَارٌ فَاحْتَرَقَتْ كَذَٰلِكَ يُبَيِّنُ اللَّهُ لَكُمُ الْآيَاتِ لَعَلَّكُمْ تَتَفَكَّرُونَ ٢٦٦

تَتَفَكَّرُونَ tatafakkarūna · ponder

Would one of you like to have a garden of palm trees and grapevines underneath which rivers flow in which he has from every fruit? But he is afflicted with old age and has weak [i.e., immature] offspring, and it is hit by a whirlwind containing fire and is burned. Thus does Allāh make clear to you [His] verses that you might give thought. (Surah Al-Baqarah, 2:266)

إِنَّهُ فَكَّرَ وَقَدَّرَ ١٨

فَكَّرَ fakkara · thought

Indeed, he thought and deliberated. (Surah Al-Muddaththir, 74:18)