مشكوة المصابيح
Mishkat al-Masabih
كتاب الصوم
The Book of Fasting
(ذِكْرُ اعْتِكَافِ رَسُولِ اللَّهِ ﷺ الْعِشْرِينَ يَوْمًا مَرَّةً)
(Mention of the Prophet’s ﷺ 20-day I'tikaf once)
Hadith 2102
عَنْ أَنَسٍ قَالَ: كَانَ النَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ يَعْتَكِفُ فِي الْعَشْرِ الْأَوَاخِرِ مِنْ رَمَضَانَ فَلَمْ يَعْتَكِفْ عَامًا. فَلَمَّا كَانَ الْعَامُ الْمقبل اعْتكف عشْرين. رَوَاهُ التِّرْمِذِيّ
Anas said that the Prophet was accustomed to engage in private devotion in the mosque during the last ten nights of Ramadan; but one year he omitted it and he engaged in it during twenty nights the next year. Tirmidhi transmitted it.
