ON THE SUBJECT OF 232 SECLUSION; SECLUSION DURING THE LAST TEN DAYS OF RAMADAN H H 1294 "The Messenger of Allah, praise and peace be upon him, would go into seclusion in the Mosque during the last ten days of Ramadan." R 1294 Bukhari and Muslim with a chain up to ibn Omar who related that the Messenger of Allah, praise and peace be upon him, said this.
9- كتَاب الاعْتِكَاف باب الاعتكاف في رمضان 1268- عن ابن عمر رضي الله عنهما ، قَالَ : كَانَ رسولُ اللهِ صلى الله عليه وآله وسلم يَعْتَكِفُ العَشْرَ الأوَاخِرَ مِنْ رَمَضَانَ . متفقٌ عَلَيْهِ .