(17) باب الاِعْتِكَافِ فِي الْعَشْرِ الأَوْسَطِ مِنْ رَمَضَانَ
Narrated Abu Huraira:
The Prophet (ﷺ) used to perform I`tikaf every year in the month of Ramadan for ten days, and when it was the year of his death, he stayed in I`tikaf for twenty days. (ID)
Reference (ID): Sahih al-Bukhari 2044 (ID)
In-book reference (ID): Book 33, Hadith 19 (ID)
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 3, Book 33, Hadith 260 (ID)