2ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ دَاوُدَ بْنِ سِرْحَانَ قَالَ كُنْتُ بِالْمَدِينَةِ فِي شَهْرِ رَمَضَانَ فَقُلْتُ لأَبِي عَبْدِ الله (عَلَيْهِ السَّلاَم) إِنِّي أُرِيدُ أَنْ أَعْتَكِفَ فَمَا ذَا أَقُولُ وَمَا ذَا أَفْرِضُ عَلَى نَفْسِي فَقَالَ لا تَخْرُجْ مِنَ الْمَسْجِدِ إِلاَّ لِحَاجَةٍ لا بُدَّ مِنْهَا وَلا تَقْعُدْ تَحْتَ ظِلالٍ حَتَّى تَعُودَ إِلَى مَجْلِسِكَ.
2. A number of our people have narrated from Sahl ibn Ziyad from Ahmad ibn Muhammad from Dawud ibn Sarhan who has said the following: “I was in al-Madinah in the month of Ramadan and I said to abu ‘Abd Allah (a.s.), that I wanted to remain in ’ Ttikaf. What should I say and what should I place upon myself?’ He (the Imam) said, ‘You must not leave the Masjid except for something without which you cannot do; and you must not sit in the shadow until you return to your place.”