Chapter on Zakat Al-Fitrah
Man Lā Yaḥḍuruh al-Faqīh|Volume 2|Book 2|Chapter 37
وَ رَوَى مُحَمَّدُ بْنُ إِسْمَاعِيلَ بْنِ بَزِيعٍ قَالَ: بَعَثْتُ إِلَى أَبِي اَلْحَسَنِ اَلرِّضَا عَلَيْهِ اَلسَّلاَمُ بِدَرَاهِمَ لِي وَ لِغَيْرِي وَ كَتَبْتُ إِلَيْهِ أُخْبِرُهُ أَنَّهَا مِنْ فِطْرَةِ اَلْعِيَالِ فَكَتَبَ عَلَيْهِ اَلسَّلاَمُ بِخَطِّهِ «قَبَضْتُ ».
It is narrated by Muhammad ibn Isma'il ibn Bazi', who said: "I sent some dirhams to Abu Al-Hasan Al-Ridha عليه السلام on behalf of myself and others, and I wrote to him informing him that it was for the Zakat al-Fitr of the dependents. Imam عليه السلام wrote back in his own handwriting: 'I have received it.'"
- Ṣaḥīḥ al-Faqīh