١١ أَخْبَرَنِي حَكِيمُ بْنُ دَاوُدَ بْنِ حَكِيمٍ عَنْ سَلَمَةَ عَنْ أَحْمَدَ [مُحَمَّدِ] بْنِ إِسْحَاقَ الْقَزْوِينِيِّ عَنْ أَبِي بَكَّارٍ قَالَ أَخَذْتُ مِنَ التُّرْبَةِ الَّتِي عِنْدَ رَأْسِ قَبْرِ الْحُسَيْنِ بْنِ عَلِيٍّ (ع) فَإِنَّهَا طِينَةٌ حَمْرَاءُ فَدَخَلْتُ عَلَى الرِّضَا (ع) فَعَرَضْتُهَا عَلَيْهِ فَأَخَذَهَا فِي كَفِّهِ ثُمَّ شَمَّهَا ثُمَّ بَكَى حَتَّى جَرَتْ دُمُوعُهُ ثُمَّ قَالَ هَذِهِ تُرْبَةُ جَدِّي
11. Ĥukaym ibn Dāwūd ibn Ĥukaym narrated to me from Salamah, from Aĥmad/Muĥammad ibn Isĥāq Al-Qazwǐni, from Abǐ Bakkār, who said: I took some of the dust which is close to the head of the grave of Ĥusain ibn ‘Ali . It was a red-coloured clay. I took it to Imam Riďā  to show it to him. He held it in his palm, smelled it, and started to cry, shedding tears. Then he (the Imam ) said, “This is the dust of (the grave of) my grandfather.”