٢- حَدَّثَنا الحاكِم أَبُو عَلِيٍّ الحُسَين بن أَحمَد البيهقي قالَ حَدَّثَني مُحَمَّد بن يحيى الصولي قالَ حَدَّثَنا أَبُو ذكوان قالَ سَمِعتُ إِبراهِيم بن العَبَّاس يَقُولُ: كَانَتِ الْبَيْعَةُ لِلرِّضَا عَلَيْهِ السَّلامُ لِخَمْسٍ خَلَوْنَ مِنْ شَهْرِ رَمَضَانَ سَنَةَ إِحْدَى وَمِائَتَيْنِ وَزَوَّجَهُ ابْنَتَهُ أُمَّ حَبِيبٍ فِي أَوَّلِ سَنَةِ اثْنَتَيْنِ وَمِائَتَيْنِ وَتُوُفِّيَ سَنَةَ ثَلاثٍ وَمِائَتَيْنِ بِطُوسَ وَالْمَأْمُونُ مُتَوَجِّهٌ إِلَى الْعِرَاقِ فِي رَجَبٍ وَرَوَى لِي غَيْرُهُ أَنَّ الرِّضَا عَلَيْهِ السَّلامُ تُوُفِّيَ وَلَهُ تِسْعٌ وَأَرْبَعُونَ سَنَةً وَسِتَّةُ أَشْهُرٍ وَالصَّحِيحُ أَنَّهُ تُوُفِّيَ فِي شَهْرِ رَمَضَانَ لِتِسْعٍ بَقِينَ مِنْهُ يَوْمَ الْجُمُعَةِ سَنَةَ ثَلاثٍ وَمِائَتَيْنِ مِنْ هِجْرَةِ النَّبِيِ‏ صَلَّى اللهُ عَلَيْهِ وَآلِهِ.
63-2 Al-Hakim Abu Ali Al-Husayn ibn Ahmad al-Bayhaqi narrated that Muhammad ibn Yahya al-Sowli quoted on the authority of Abu Thakwan that he had heard Ibrahim ibn Al-Abbas say, “The pledge of allegiance to Ar-Ridha’  occurred on the fifth day of the (Arabic) month of Ramadhan in the year 201 A.H. (815 A.D.). Al-Ma’mun married off his own younger daughter - Umm Habib - to Ar-Ridha’  at the beginning of the year 202 A.H. (816 A.D.). He died in Toos in the year 203 A.H. (817 A.D.), while Al-Ma’mun was going to Iraq in the (Arabic) month of Rajab.”And someone other than Al-Bayhaqi narrated that Ar-Ridha’  died when he  was forty-nine and a half years old. The correct information is that he died in the year 203 A.H. (817 A.D.) on a Friday during the last ten days of the (Arabic) month of Ramadhan - nine days before the end of the month.