٤ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ سَهْلِ بْنِ زِيَادٍ عَنْ يُوسُفَ بْنِ السُّخْتِ عَنْ حَمْدَانَ بْنِ النَّضْرِ عَنْ مُحَمَّدِ بْنِ عَبْدِ الله الصَّيْقَلِ قَالَ خَرَجَ عَلَيْنَا أَبُو الْحَسَنِ يَعْنِي الرِّضَا (عَلَيْهِ السَّلاَم) فِي يَوْمِ خَمْسَةٍ وَعِشْرِينَ مِنْ ذِي الْقَعْدَةِ فَقَالَ صُومُوا فَإِنِّي أَصْبَحْتُ صَائِماً قُلْنَا جُعِلْنَا فِدَاكَ أَيُّ يَوْمٍ هُوَ فَقَالَ يَوْمٌ نُشِرَتْ فِيهِ الرَّحْمَةُ وَدُحِيَتْ فِيهِ الأَرْضُ وَنُصِبَتْ فِيهِ الْكَعْبَةُ وَهَبَطَ فِيهِ آدَمُ ع. 
4. A number of our people have narrated from Sahl ibn Ziyad from Yusuf al-Sukht from Hamdan ibn al-Nadr from Muhammad ibn ‘Abd Allah al-Sayqal who has said the following: “Abu al-Hassan, al-Rida , once came out to us on the twenty-fifth of the month of Dhul Qa’dah and said, ‘You should fast during this day. I am fasting.’ We then said, ‘We pray to Allah to keep our souls in service for your cause, which day is it?’ He replied, ‘It is the day during which the mercy (of Allah) was spread, the earth was extended and al-Ka‘bah was placed in place and Adam descended therein.’” 