Messenger of Allah ﷺ said, "Search for the Night of Qadr in the odd nights of the last ten days of Ramadan."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ تَحَرَّوْا لَيْلَةَ الْقَدْرِ فِي الْوِتْرِ مِنَ الْعَشْرِ الأَوَاخِرِ مِنْ رَمَضَانَ  

Messenger of Allah ﷺ used to practice Iʿtikaf (in the mosque) in the middle third of Ramadan and after passing the twenty nights he used to go back to his house on the 21st, and the people who were in Iʿtikaf with him also used to go back to their houses. Once in Ramadan, in which he practiced Iʿtikaf, he established the night prayers at the night in which he used to return home, and then he addressed the people and ordered them whatever Allah wished him to order and said, "I used to practice Iʿtikaf for these ten days (i.e. the middle third but now I intend to stay in Iʿtikaf for the last ten days (of the month); so whoever was in Iʿtikaf with me should stay at his place of seclusion. I have verily been shown (the date of) this Night (of Qadr) but I have forgotten it. So search for it in the odd nights of the last ten days (of this month). I also saw myself (in the dream) prostrating in mud and water." On the night of the 21st, the sky was covered with clouds and it rained, and the rainwater started leaking through the roof of the mosque at the praying place of the Prophet ﷺ . I saw with my own eyes the Prophet at the completion of the morning prayer leaving with his face covered with mud and water.  

عَنْ أَبِي سَعِيدٍ الْخُدْرِيِّ ؓ كَانَ رَسُولُ اللَّهِ ﷺ يُجَاوِرُ فِي رَمَضَانَ الْعَشْرَ الَّتِي فِي وَسَطِ الشَّهْرِ فَإِذَا كَانَ حِينَ يُمْسِي مِنْ عِشْرِينَ لَيْلَةً تَمْضِي وَيَسْتَقْبِلُ إِحْدَى وَعِشْرِينَ رَجَعَ إِلَى مَسْكَنِهِ وَرَجَعَ مَنْ كَانَ يُجَاوِرُ مَعَهُ وَأَنَّهُ أَقَامَ فِي شَهْرٍ جَاوَرَ فِيهِ اللَّيْلَةَ الَّتِي كَانَ يَرْجِعُ فِيهَا فَخَطَبَ النَّاسَ فَأَمَرَهُمْ مَا شَاءَ اللَّهُ ثُمَّ قَالَ كُنْتُ أُجَاوِرُ هَذِهِ الْعَشْرَ ثُمَّ قَدْ بَدَا لِي أَنْ أُجَاوِرَ هَذِهِ الْعَشْرَ الأَوَاخِرَ فَمَنْ كَانَ اعْتَكَفَ مَعِي فَلْيَثْبُتْ فِي مُعْتَكَفِهِ وَقَدْ أُرِيتُ هَذِهِ اللَّيْلَةَ ثُمَّ أُنْسِيتُهَا فَابْتَغُوهَا فِي الْعَشْرِ الأَوَاخِرِ وَابْتَغُوهَا فِي كُلِّ وِتْرٍ وَقَدْ رَأَيْتُنِي أَسْجُدُ فِي مَاءٍ وَطِينٍ فَاسْتَهَلَّتِ السَّمَاءُ فِي تِلْكَ اللَّيْلَةِ فَأَمْطَرَتْ فَوَكَفَ الْمَسْجِدُ فِي مُصَلَّى النَّبِيِّ ﷺ لَيْلَةَ إِحْدَى وَعِشْرِينَ فَبَصُرَتْ عَيْنِي رَسُولَ اللَّهِ ﷺ وَنَظَرْتُ إِلَيْهِ انْصَرَفَ مِنَ الصُّبْحِ وَوَجْهُهُ مُمْتَلِئٌ طِينًا وَمَاءً  

The Prophet ﷺ said, "Look for (the Night of Qadr).  

عَنِ النَّبِيِّ ﷺ قَالَ الْتَمِسُوا  

Messenger of Allah ﷺ used to practice Iʿtikaf in the last ten nights of Ramadan and used to say, "Look for the Night of Qadr in the last ten nights of the month of Ramadan."  

كَانَ رَسُولُ اللَّهِ ﷺ يُجَاوِرُ فِي الْعَشْرِ الأَوَاخِرِ مِنْ رَمَضَانَ وَيَقُولُ تَحَرَّوْا لَيْلَةَ الْقَدْرِ فِي الْعَشْرِ الأَوَاخِرِ مِنْ رَمَضَانَ  

The Prophet ﷺ said, "Look for the Night of Qadr in the last ten nights of Ramadan ,' on the night when nine or seven or five nights remain out of the last ten nights of Ramadan (i.e. 21, 23, 25, respectively).  

أَنَّ النَّبِيَّ ﷺ قَالَ الْتَمِسُوهَا فِي الْعَشْرِ الأَوَاخِرِ مِنْ رَمَضَانَ لَيْلَةَ الْقَدْرِ فِي تَاسِعَةٍ تَبْقَى فِي سَابِعَةٍ تَبْقَى فِي خَامِسَةٍ تَبْقَى  

Messenger of Allah ﷺ said, "The Night of Qadr is in the last ten nights of the month (Ramadan), either on the first nine or in the last (remaining) seven nights (of Ramadan)." Ibn ʿAbbas added, "Search for it on the twenty-fourth (of Ramadan).  

قَالَ رَسُولُ اللَّهِ ﷺ هِيَ فِي الْعَشْرِ هِيَ فِي تِسْعٍ يَمْضِينَ أَوْ فِي سَبْعٍ يَبْقَيْنَ يَعْنِي لَيْلَةَ الْقَدْرِ قَالَ عَبْدُ الْوَهَّابِ عَنْ أَيُّوبَ وَعَنْ خَالِدٍ عَنْ عِكْرِمَةَ عَنِ ابْنِ عَبَّاسٍ الْتَمِسُوا فِي أَرْبَعٍ وَعِشْرِينَ