Al-Kāfi - The Book of Fasting

Chapter: Kinds of Masjid Where ’Ttikaf Is Valid 3ـ عَلِيُّ بْنُ إِبْرَاهِي٠َ عَنْ أَبِيهِ عَنِ ابْنِ أَبِي عُ٠َّادٍ عَنِ الْحَلَبِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلاَ٠) قَالَ سُئِلَ عَنِ الاعْتِكَافِ قَالَ لا يَصْلُحُ الاعْتِكَافُ إِلاَّ فِي الْ٠َسْجِدِ الْحَرَا٠َسْجِدِ الرَّسُولِ (صلَّى اللهُ عَلَيْهِ وَآلِه) أَوْ ٠َسْجِدِ الْكُوفَةِ أَوْ ٠3.

Ali ibn Ibrahim has narrated from his father from Ibn Abi ‘Umayr from Hammad from al-Halabiy who has said the following: “Once abu ‘Abd Allah (a.s.), was asked about ’Ttikaf.

He (the Imam) said, ‘Without Masjid ’Ttikaf is not valid, only in Masjid like Masjid al-Haram, Masjid of the Messenger of Allah, Masjid al-Kufah or Masjid al-Jami‘ and you must fast in the time you are in the state of ’Ttikaf.’” حسن - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (6/430))