٢ـ سَهْلُ بْنُ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ دَاوُدَ بْنِ سِرْحَانَ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلاَم) قَالَ لا اعْتِكَافَ إِلاَّ فِي الْعِشْرِينَ مِنْ شَهْرِ رَمَضَانَ وَقَالَ إِنَّ عَلِيّاً صَلَوَاتُ الله عَلَيْهِ كَانَ يَقُولُ لا أَرَى الاعْتِكَافَ إِلاَّ فِي الْمَسْجِدِ الْحَرَامِ أَوْ مَسْجِدِ الرَّسُولِ أَوْ مَسْجِدٍ جَامِعٍ وَلا يَنْبَغِي لِلْمُعْتَكِفِ أَنْ يَخْرُجَ مِنَ الْمَسْجِدِ إِلاَّ لِحَاجَةٍ لا بُدَّ مِنْهَا ثُمَّ لا يَجْلِسْ حَتَّى يَرْجِعَ وَالْمَرْأَةُ مِثْلُ ذَلِكَ.
2. Sahl ibn Ziyad has narrated from Ahmad ibn Muhammad from Dawud ibn Sarhan who has said the following: “Abu ‘ Abd Allah , has said, ‘Without passing the twentieth day of the month of Ramadan Ttikaf is not valid.’ He (the Imam) then said that Ali ‘Alayhi al-Salam, would say, “I do not see Ttikaf, unless it is in Masjid al-Haram, Masjid of the Messenger of Allah, or a Jami‘ Masjid (central). It is not proper for one performing ’Ttikaf to go out of Masjid except for one’s urgent needs without which one cannot do, but then one must not sit down until one returns. The same rule applies to women.’”” 