We practiced Iʿtikaf with Messenger of Allah ﷺ in the middle ten days (of Ramadan). In the morning of the twentieth (of Ramadan) we shifted our baggage, but Messenger of Allah ﷺ came to us and said, "Whoever was m Iʿtikaf should return to his place of Iʿtikaf, for I saw (i.e. was informed about the date of) this Night (of Qadr) and saw myself prostrating in mud and water." When I returned to my place the sky was overcast with clouds and it rained. By Him Who sent Muhammad with the Truth, the sky was covered with clouds from the end of that day, and the mosque which was roofed with leafstalks of date palm trees (leaked with rain) and I saw the trace of mud and water over the nose of the Prophet ﷺ and its tip.  

اعْتَكَفْنَا مَعَ رَسُولِ اللَّهِ ﷺ الْعَشْرَ الأَوْسَطَ فَلَمَّا كَانَ صَبِيحَةَ عِشْرِينَ نَقَلْنَا مَتَاعَنَا فَأَتَانَا رَسُولُ اللَّهِ ﷺ قَالَ مَنْ كَانَ اعْتَكَفَ فَلْيَرْجِعْ إِلَى مُعْتَكَفِهِ فَإِنِّي رَأَيْتُ هَذِهِ اللَّيْلَةَ وَرَأَيْتُنِي أَسْجُدُ فِي مَاءٍ وَطِينٍ فَلَمَّا رَجَعَ إِلَى مُعْتَكَفِهِ وَهَاجَتِ السَّمَاءُ فَمُطِرْنَا فَوَالَّذِي بَعَثَهُ بِالْحَقِّ لَقَدْ هَاجَتِ السَّمَاءُ مِنْ آخِرِ ذَلِكَ الْيَوْمِ وَكَانَ الْمَسْجِدُ عَرِيشًا فَلَقَدْ رَأَيْتُ عَلَى أَنْفِهِ وَأَرْنَبَتِهِ أَثَرَ الْمَاءِ وَالطِّينِ