Al-Kāfi - The Book of Fasting

Chapter: Kinds of Masjid Where ’Ttikaf Is Valid 5ـ أَبُو عَلِيٍّ الأَشْعَرِيُّ عَنْ ٠َّدِ بْنِ عَبْدِ الْجَبَّارِ عَنْ صَفْوَانَ بْنِ يَحْيَى عَنْ ٠َنْصُورِ بْنِ حَازِ٠ٍ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلاَ٠َكَّةَ يُصَلِّي فِي أَيِّ بُيُوتِهَا شَاءَ وَالْ٠ُعْتَكِفُ فِي غَيْرِهِ لا يُصَلِّي إِلاَّ فِي الْ٠َسْجِدِ الَّذِي سَ٠5.

Abu Ali al-Ash’ariy has narrated from Muhammad ibn ‘Abd al-Jabbar from Safwan ibn Yahya from Mansur ibn Hazim who has said the following: “Abu ‘Abd Allah (a.s.), has said, ‘One who performs ’Ttikaf in Makkah can perform Salat (prayer) in any of its houses that he chooses, and one performing ’Ttikaf in other places cannot perform Salat (prayer), unless it is the Masjid which he has determined.’” صحيح - Allamah Baqir al-Majlisi (Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (6/430))