Messenger of Allah ﷺ used to practice Iʿtikaf in the last ten days of the month of Ramadan. (Using translation from Bukhārī 2025)
كَانَ رَسُولُ اللهِ ﷺ يَعْتَكِفُ الْعَشْرَ الْأَوَاخِرَ مِنْ رَمَضَانَ وَالْعَشْرَ الْأَوَاسِطَ فَمَاتَ حِينَ مَاتَ وَهُوَ يَعْتَكِفُ عِشْرِينَ يَوْمًا
[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»
[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