247. hadíth
وَ فِي رِوَايَةِ إِدْرِيسَ بْنِ زَيْدٍ وَ عَلِيِّ بْنِ إِدْرِيسَ عَنِ اَلرِّضَا عَلَيْهِ اَلسَّلاَمُ: «تَصَدَّقَ عَنْ كُلِّ يَوْمٍ بِمُدٍّ مِنْ حِنْطَةٍ أَوْ شَعِيرٍ ».
In a narration from Idris ibn Zayd and Ali ibn Idris, it is reported from Imam Ali ibn Musa Ar-Ridha (a.s) that: "He should give charity for each day with a mud (a measure) of wheat or barley."