Sunan Abi Dawud Fasting (Kitab Al-Siyam) Abdullah bin Budayl al-Khuza'i Abu Da'ud أبو داود السجستاني الأزدي Ahmed bin Ibrahim bin Kathir أحمد بن إبراهيم بن كثير Amr bin Dinar عمرو بن دينار الأثرم الجمحي ibn Umar Umar ibn al-Khattab Hasan Sahih The sunnah for one who is observing i’tikaf (in a mosque) is not to visit a patient, or to attend a funeral, or touch or embrace one’s wife, or go out for anything but necessary purposes. There is no i’tikaf without fasting, and there is no i’tikaf except in a congregational mosque. https://parallelquran.com/hadith/sunan-abi-dawud-2473/