The Prophet ﷺ used to perform Iʿtikaf every year in the month of Ramadan for ten days, and when it was the year of his death, he stayed in Iʿtikaf for twenty days.  

كَانَ النَّبِيُّ ﷺ يَعْتَكِفُ فِي كُلِّ رَمَضَانَ عَشْرَةَ أَيَّامٍ فَلَمَّا كَانَ الْعَامُ الَّذِي قُبِضَ فِيهِ اعْتَكَفَ عِشْرِينَ يَوْمًا  

The Prophet ﷺ used to observe i'tikaf during the last ten days of Ramadan. One year he did not observe i'tikaf. When the next year came, he observed i'tikaf for twenty nights (i.e. days).  

أَنَّ النَّبِيَّ ﷺ كَانَ يَعْتَكِفُ الْعَشْرَ الأَوَاخِرَ مِنْ رَمَضَانَ فَلَمْ يَعْتَكِفْ عَامًا فَلَمَّا كَانَ الْعَامُ الْمُقْبِلُ اعْتَكَفَ عِشْرِينَ لَيْلَةً  

The Prophet ﷺ used to observe I'tikaf during ten days of Ramadan every year. But when the year in which he died, he observed I'tikaf for twenty days.  

كَانَ النَّبِيُّ ﷺ يَعْتَكِفُ كُلَّ رَمَضَانَ عَشَرَةَ أَيَّامٍ فَلَمَّا كَانَ الْعَامُ الَّذِي قُبِضَ فِيهِ اعْتَكَفَ عِشْرِينَ يَوْمًا  

"The Prophet would perform I'tikaf during the last ten (nights) of Ramadan. One year he did not perform I'tikaf, so he performed I'tikaf for twenty (nights) in the following year."  

كَانَ النَّبِيُّ ﷺ يَعْتَكِفُ فِي الْعَشْرِ الأَوَاخِرِ مِنْ رَمَضَانَ فَلَمْ يَعْتَكِفْ عَامًا فَلَمَّا كَانَ فِي الْعَامِ الْمُقْبِلِ اعْتَكَفَ عِشْرِينَ  

The Prophet ﷺ used to spend the last ten days of Ramadan in I’tikaf. One year he was traveling, so the following year he spent twenty days in I’tikaf.  

أَنَّ النَّبِيَّ ﷺ كَانَ يَعْتَكِفُ الْعَشْرَ الأَوَاخِرَ مِنْ رَمَضَانَ فَسَافَرَ عَامًا فَلَمَّا كَانَ مِنَ الْعَامِ الْمُقْبِلِ اعْتَكَفَ عِشْرِينَ يَوْمًا  

The Prophet ﷺ used to perform Iʿtikaf every year in the month of Ramadan for ten days, and when it was the year of his death, he stayed in Iʿtikaf for twenty days. (Using translation from Bukhārī 2044)  

كَانَ رَسُولُ اللهِ ﷺ يَعْتَكِفُ فِي كُلِّ رَمَضَانَ عَشْرَةَ أَيَّامٍ فَلَمَّا كَانَ الْعَامُ الَّذِي قُبِضَ فِيهِ اعْتَكَفَ عِشْرِينَ يَوْمًا  

[Machine] From the Prophet ﷺ, it was narrated that he used to observe i'tikaf during the last ten days of the month of Ramadan. But in the year he passed away, he observed i'tikaf for twenty days.  

عَنِ النَّبِيِّ ﷺ أَنَّهُ كَانَ يَعْتَكِفُ الْعَشْرَ الْأَوَاخِرَ مِنْ شَهْرِ رَمَضَانَ فَلَمَّا كَانَ الْعَامُ الَّذِي قُبِضَ فِيهِ اعْتَكَفَ عِشْرِينَ  

[Machine] The translation of the given Arabic text into English is: "The Messenger of Allah ﷺ used to observe I'tikaf during the last ten days (of Ramadan), but when it was the year in which he passed away, he observed I'tikaf for twenty days."  

«كَانَ رَسُولُ اللَّهِ ﷺ يَعْتَكِفُ الْعَشْرَ الْأَوَاخِرَ فَلَمَّا كَانَ الْعَامُ الَّذِي قُبِضَ فِيهِ اعْتَكَفَ عِشْرِينَ يَوْمًا»  

The Prophet ﷺ used to observe i'tikaf during the last ten days of Ramadan. One year he did not observe i'tikaf. When the next year came, he observed i'tikaf for twenty nights (i.e. days). (Using translation from Abū Dāʾūd 2463)   

«أَنَّ النَّبِيَّ ﷺ كَانَ يَعْتَكِفُ الْأَوَاخِرَ مِنْ رَمَضَانَ فَسَافَرَ عَامًا فَلَمْ يَعْتَكِفْ وَاعْتَكَفَ مِنَ الْعَامِ الْمُقْبِلِ عِشْرِينَ لَيْلَةً»  

[Machine] "The Messenger of Allah ﷺ used to observe I'tikaf during the last ten nights of Ramadan when he was residing in Mecca. But when he traveled, he would observe I'tikaf for twenty nights in the following year."  

«كَانَ رَسُولُ اللَّهِ ﷺ إِذَا كَانَ مُقِيمًا يَعْتَكِفُ فِي الْعَشْرِ الْأَوَاخِرِ مِنْ رَمَضَانَ فَإِذَا سَافَرَ اعْتَكَفَ مِنَ الْعَامِ الْمُقْبِلِ عِشْرِينَ»  

Ibn 'Umar (Allah be pleased with both of them) reported that the Messenger of Allah ﷺ used to observe i'tikaf in the last ten days of Ramadan. (Using translation from Muslim 1171a)  

«أَنَّ رَسُولَ اللَّهِ ﷺ كَانَ يَعْتَكِفُ فِي الْعَشْرِ الْأَوَاخِرِ مِنْ رَمَضَانَ فَسَافَرَ وَلَمْ يَعْتَكِفْ فَلَمَّا كَانَ مِنَ الْعَامِ الْمُقْبِلِ اعْتَكَفَ عِشْرِينَ يَوْمًا»  

[Machine] The Messenger of Allah ﷺ used to observe Itikaf during the last ten days of Ramadan when he was staying in one place. However, when he traveled, he would observe Itikaf for twenty days in the following year.  

كَانَ رَسُولُ اللَّهِ ﷺ إِذَا كَانَ مُقِيمًا يَعْتَكِفُ الْعَشْرَ الْأَوَاخِرَ مِنْ رَمَضَانَ فَإِذَا سَافَرَ اعْتَكَفَ مِنَ الْعَامِ الْمُقْبِلِ عِشْرِينَ  

The Prophet ﷺ used to observe i'tikaf during the last ten days of Ramadan. One year he did not observe i'tikaf. When the next year came, he observed i'tikaf for twenty nights (i.e. days). (Using translation from Abū Dāʾūd 2463)  

أَنَّ رَسُولَ اللهِ ﷺ كَانَ «يَعْتَكِفُ الْعَشْرَ الْأَوَاخِرَ مِنْ رَمَضَانَ فَسَافَرَ عَامًا فَلَمْ يَعْتَكِفْ فَلَمَّا كَانَ الْعَامُ الْمُقْبِلُ اعْتَكَفَ عِشْرِينَ»  

The Prophet ﷺ used to spend the last ten days of Ramadan in I’tikaf. One year he was traveling, so the following year he spent twenty days in I’tikaf. (Using translation from Ibn Mājah 1770)   

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يَعْتَكِفُ الْعَشْرَ الْأَوَاخِرَ مِنْ رَمَضَانَ فَسَافَرَ عَامًا فَلَمْ يَعْتَكِفْ فَلَمَّا كَانَ مِنْ قَابِلٍ اعْتَكَفَ عِشْرِينَ يَوْمًا وَرُوِيَ فِي ذَلِكَ عَنْ أَنَسِ بْنِ مَالِكٍ  

[Machine] The Messenger of Allah, ﷺ , used to observe voluntary seclusion during the last ten days of Ramadan when he was residing, and during the next year he observed voluntary seclusion for twenty days when he was traveling.  

كَانَ رَسُولُ اللهِ ﷺ إِذَا كَانَ مُقِيمًا اعْتَكَفَ الْعَشْرَ الْأَوَاخِرَ وَإِذَا سَافَرَ اعْتَكَفَ الْعَامَ الْمُقْبِلَ عِشْرِينَ يَوْمًا  

"عَنْ أُبىٍّ قَالَ: إِنَّ النَّبِيَّ ﷺ كَانَ يَعْتَكِفُ الْعَشْرَ الأَوَاخِرَ مِنْ رَمَضَانَ، فَسَافَرَ عَامًا فَلَمْ يَعْتَكِفْ، فَلَمَّا كَانَ مِنْ قَابِلٍ اعْتَكَفَ عِشْرِينَ يَوْمًا".