[Machine] The Messenger of Allah ﷺ used to observe I'tikaf in the last ten nights of Ramadan until Allah took him.

أَنَّ رَسُولَ اللهِ ﷺ كَانَ يَعْتَكِفُ الْعَشْرَ الْأَوَاخِرَ مِنْ رَمَضَانَ حَتَّى قَبَضَهُ اللهُ ﷻ