The Quran root ت ح ت t-ḥ-t

وَبَشِّرِ الَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ أَنَّ لَهُمْ جَنَّاتٍ تَجْرِي مِن تَحْتِهَا الْأَنْهَارُ كُلَّمَا رُزِقُوا مِنْهَا مِن ثَمَرَةٍ رِّزْقًا قَالُوا هَٰذَا الَّذِي رُزِقْنَا مِن قَبْلُ وَأُتُوا بِهِ مُتَشَابِهًا وَلَهُمْ فِيهَا أَزْوَاجٌ مُّطَهَّرَةٌ وَهُمْ فِيهَا خَالِدُونَ ٢٥

تَحْتِهَا taḥtihā · under them

And give good tidings to those who believe and do righteous deeds that they will have gardens [in Paradise] beneath which rivers flow. Whenever they are provided with a provision of fruit therefrom, they will say, "This is what we were provided with before." And it is given to them in likeness. And they will have therein purified spouses, and they will abide therein eternally. (Surah Al-Baqarah, 2:25)

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

تَحْتِهَا taḥtihā · underneath it

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)