• أَسْفَل
• سَافِل
• سَافِلهَا
• سُّفْلَىٰ

Appears 9 times in the Quran.

1. 4:145 إِنَّ ٱلْمُنَٰفِقِينَ فِى ٱلدَّرْكِ ٱلْأَسْفَلِ مِنَ ٱلنَّارِ وَلَن تَجِدَ لَهُمْ نَصِيرًا

   Surely the hypocrites are in the lowest stage of the fire and you shall not find a helper for them.
   

2. 8:42 إِذْ أَنتُم بِٱلْعُدْوَةِ ٱلدُّنْيَا وَهُم بِٱلْعُدْوَةِ ٱلْقُصْوَىٰ وَٱلرَّكْبُ أَسْفَلَ مِنكُمْ وَلَوْ تَوَاعَدتُّمْ لَٱخْتَلَفْتُمْ فِى ٱلْمِيعَٰدِ وَلَٰكِن لِّيَقْضِىَ ٱللَّهُ أَمْرًا كَانَ مَفْعُولًا لِّيَهْلِكَ مَنْ هَلَكَ عَنۢ بَيِّنَةٍ وَيَحْيَىٰ مَنْ حَىَّ عَنۢ بَيِّنَةٍ وَإِنَّ ٱللَّهَ لَسَمِيعٌ عَلِيمٌ

   When you were on the nearer side (of the valley) and they were on the farthest side, while the caravan was in a lower place than you; and if you had mutually made an appointment, you would certainly have broken away from the appointment, but-- in order that Allah might bring about a matter which was to be done, that he who would perish might perish by clear proof, and he who would live might live by clear proof; and most surely Allah is Hearing, Knowing;
   

3. 9:40 إِلَّا تَنصُرُوهُ فَقَدْ نَصَرَهُ ٱللَّهُ إِذْ أَخْرَجَهُ ٱلَّذِينَ كَفَرُوا۟ ثَانِىَ ٱثْنَيْنِ إِذْ هُمَا فِى ٱلْغَارِ إِذْ يَقُولُ لِصَٰحِبِهِۦ لَا تَحْزَنْ إِنَّ ٱللَّهَ مَعَنَا فَأَنزَلَ ٱللَّهُ سَكِينَتَهُۥ عَلَيْهِ وَأَيَّدَهُۥ بِجُنُودٍ لَّمْ تَرَوْهَا وَجَعَلَ كَلِمَةَ ٱلَّذِينَ كَفَرُوا۟ ٱلسُّفْلَىٰ وَكَلِمَةُ ٱللَّهِ هِىَ ٱلْعُلْيَا وَٱللَّهُ عَزِيزٌ حَكِيمٌ

   If you will not aid him, Allah certainly aided him when those who disbelieved expelled him, he being the second of the two, when they were both in the cave, when he said to his companion: Grieve not, surely Allah is with us. So Allah sent down His tranquillity upon him and strengthened him with hosts which you did not see, and made lowest the word of those who disbelieved; and the word of Allah, that is the highest; and Allah is Mighty, Wise.
   

4. 11:82 فَلَمَّا جَآءَ أَمْرُنَا جَعَلْنَا عَٰلِيَهَا سَافِلَهَا وَأَمْطَرْنَا عَلَيْهَا حِجَارَةً مِّن سِجِّيلٍ مَّنضُودٍ

   So when Our decree came to pass, We turned them upside down and rained down upon them stones, of what had been decreed, one after another.
   

5. 15:74 فَجَعَلْنَا عَٰلِيَهَا سَافِلَهَا وَأَمْطَرْنَا عَلَيْهِمْ حِجَارَةً مِّن سِجِّيلٍ

   Thus did We turn it upside down, and rained down upon them stones of what had been decreed.
   

6. 33:10 إِذْ جَآءُوكُم مِّن فَوْقِكُمْ وَمِنْ أَسْفَلَ مِنكُمْ وَإِذْ زَاغَتِ ٱلْأَبْصَٰرُ وَبَلَغَتِ ٱلْقُلُوبُ ٱلْحَنَاجِرَ وَتَظُنُّونَ بِٱللَّهِ ٱلظُّنُونَا۠

   When they came upon you from above you and from below you, and when the eyes turned dull, and the hearts rose up to the throats, and you began to think diverse thoughts of Allah.
   

7. 37:98 فَأَرَادُوا۟ بِهِۦ كَيْدًا فَجَعَلْنَٰهُمُ ٱلْأَسْفَلِينَ

   And they desired a war against him, but We brought them low.
   

8. 41:29 وَقَالَ ٱلَّذِينَ كَفَرُوا۟ رَبَّنَآ أَرِنَا ٱلَّذَيْنِ أَضَلَّانَا مِنَ ٱلْجِنِّ وَٱلْإِنسِ نَجْعَلْهُمَا تَحْتَ أَقْدَامِنَا لِيَكُونَا مِنَ ٱلْأَسْفَلِينَ

   And those who disbelieve will say: Our Lord! show us those who led us astray from among the jinn and the men that we may trample them under our feet so that they may be of the lowest.
   

9. 95:5 ثُمَّ رَدَدْنَٰهُ أَسْفَلَ سَٰفِلِينَ

   Then We render him the lowest of the low.