In the Name of Allah, the Gracious, the Merciful
Imam al-Nawawi records in his book Meadows of the Righteous:
باب فضل قيام ليلة القدر وبيان أرجى لياليها
Chapter on the virtue of standing in prayer on the Night of Decree and clarifying the most hopeful of its nights.
Source: Riyāḍ al-Ṣāliḥīn 1/335
Allah Almighty said:
إِنَّا أَنزَلْنَاهُ فِي لَيْلَةِ الْقَدْرِ وَمَا أَدْرَاكَ مَا لَيْلَةُ الْقَدْرِ لَيْلَةُ الْقَدْرِ خَيْرٌ مِّنْ أَلْفِ شَهْرٍ تَنَزَّلُ الْمَلَائِكَةُ وَالرُّوحُ فِيهَا بِإِذْنِ رَبِّهِم مِّن كُلِّ أَمْرٍ سَلَامٌ هِيَ حَتَّىٰ مَطْلَعِ الْفَجْرِ
Indeed, it is We who sent this Quran down on the Night of Glory. And what will make you realize what the Night of Glory is? The Night of Glory is better than a thousand months. That night the angels and the spirit descend, by the permission of their Lord, for every decreed matter. It is all peace until the break of dawn.
Surat al-Qadr 97:1-5
And Allah said:
إِنَّا أَنزَلْنَاهُ فِي لَيْلَةٍ مُّبَارَكَةٍ إِنَّا كُنَّا مُنذِرِينَ فِيهَا يُفْرَقُ كُلُّ أَمْرٍ حَكِيمٍ أَمْرًا مِّنْ عِندِنَا إِنَّا كُنَّا مُرْسِلِينَ رَحْمَةً مِّن رَّبِّكَ إِنَّهُ هُوَ السَّمِيعُ الْعَلِيمُ
Indeed, We sent it down on a blessed night, for We always warn against evil. On that night every matter of wisdom is ordained by a command from Us, for We have always sent messengers as a mercy from your Lord. He alone is truly the All-Hearing, All-Knowing.
Surat al-Dukhān 44:3-6
Abu Huraira reported: The Messenger of Allah, peace and blessings be upon him, said:
مَنْ صَامَ رَمَضَانَ إِيمَانًا وَاحْتِسَابًا غُفِرَ لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ وَمَنْ قَامَ لَيْلَةَ الْقَدْرِ إِيمَانًا وَاحْتِسَابًا غُفِرَ لَهُ مَا تَقَدَّمَ مِنْ ذَنْبِهِ
Whoever fasts the month of Ramadan due to faith and seeking reward, his previous sins will be forgiven. Whoever stands in prayer during the Night of Decree due to faith and seeking reward, his previous sins will be forgiven.
Source: Ṣaḥīḥ al-Bukhārī 1901, Grade: Sahih
Ibn Umar reported: The Messenger of Allah, peace and blessings be upon him, said:
الْتَمِسُوهَا فِي الْعَشْرِ الْأَوَاخِرِ يَعْنِي لَيْلَةَ الْقَدْرِ فَإِنْ ضَعُفَ أَحَدُكُمْ أَوْ عَجَزَ فَلَا يُغْلَبَنَّ عَلَى السَّبْعِ الْبَوَاقِي
Look for the Night of Decree in the last ten nights of Ramadan. If one of you is weak or unable, then do not be overcome by the remaining seven nights.
Source: Ṣaḥīḥ Muslim 1165, Grade: Sahih
Aisha reported: The Messenger of Allah, peace and blessings be upon him, said:
تَحَرَّوْا لَيْلَةَ القَدْرِ فِي الوِتْرِ مِنَ العَشْرِ الأَوَاخِرِ مِنْ رَمَضَانَ
Search for the Night of Decree in the odd nights among the last ten nights of Ramadan.
Source: Ṣaḥīḥ al-Bukhārī 2017, Grade: Sahih
Aisha, may Allah be pleased with her, said:
كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ إِذَا دَخَلَ الْعَشْرُ شَدَّ مِئْزَرَهُ وَأَحْيَا لَيْلَهُ وَأَيْقَظَ أَهْلَهُ
When the last ten days of Ramadan arrived, the Prophet, peace and blessings be upon him, would tighten his belt, spend the night in worship, and awaken his family.
Source: Ṣaḥīḥ al-Bukhārī 2024, Grade: Muttafaqun Alayhi
In another narration, Aisha said:
كَانَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَجْتَهِدُ فِي الْعَشْرِ الْأَوَاخِرِ مَا لَا يَجْتَهِدُ فِي غَيْرِهِ
The Prophet, peace and blessings be upon him, would exert himself in worship during the last ten nights of Ramadan more so than any other time.
Source: Ṣaḥīḥ Muslim 1175, Grade: Sahih
Aisha reported: I said, “O Messenger of Allah, I see that you know which night is the Night of Decree. What should I say during it?” The Messenger of Allah, peace and blessings be upon him, said:
قُولِي اللَّهُمَّ إِنَّكَ عُفُوٌّ تُحِبُّ الْعَفْوَ فَاعْفُ عَنِّي
Say, ‘O Allah, You are pardoning. You love to forgive, so forgive me.’
Source: Sunan al-Tirmidhī 3513, Grade: Sahih
Success comes from Allah, and Allah knows best.