One who is devoutly obedient during periods of the night, prostrating and standing [in prayer], fearing the Hereafter and hoping Allah's mercy

أعوذ بالله من الشيطان الرجيم 

Az-Zumar 39:8

وَإِذَا مَسَّ ٱلْإِنسَٰنَ ضُرٌّ دَعَا رَبَّهُۥ مُنِيبًا إِلَيْهِ ثُمَّ إِذَا خَوَّلَهُۥ نِعْمَةً مِّنْهُ نَسِىَ مَا كَانَ يَدْعُوٓا۟ إِلَيْهِ مِن قَبْلُ وَجَعَلَ لِلَّهِ أَندَادًا لِّيُضِلَّ عَن سَبِيلِهِۦۚ قُلْ تَمَتَّعْ بِكُفْرِكَ قَلِيلًاۖ إِنَّكَ مِنْ أَصْحَٰبِ ٱلنَّارِ 

And when adversity touches man, he calls upon his Lord, turning to Him [alone]; then when He bestows on him a favor from Himself, he forgets Him whom he called upon before, and he attributes to Allah equals to mislead [people] from His way. Say, "Enjoy your disbelief for a little; indeed, you are of the companions of the Fire."

Az-Zumar 39:9

أَمَّنْ هُوَ قَٰنِتٌ ءَانَآءَ ٱلَّيْلِ سَاجِدًا وَقَآئِمًا يَحْذَرُ ٱلْءَاخِرَةَ وَيَرْجُوا۟ رَحْمَةَ رَبِّهِۦۗ قُلْ هَلْ يَسْتَوِى ٱلَّذِينَ يَعْلَمُونَ وَٱلَّذِينَ لَا يَعْلَمُونَۗ إِنَّمَا يَتَذَكَّرُ أُو۟لُوا۟ ٱلْأَلْبَٰبِ 

Is one who is devoutly obedient during periods of the night, prostrating and standing [in prayer], fearing the Hereafter and hoping for the mercy of his Lord, [like one who does not]? Say, "Are those who know equal to those who do not know?" Only they will remember [who are] people of understanding.