[4/-] al-Tahdhib: Sa’d b. Abdallah from Ahmad b. Muhammad from al-Husayn b. Sa’id from Hammad b. Isa from Umar b. Udhayna from Zurara who said: I was seated at Abi Ja’far’s عليه السلام place and there was no one with him except his son Ja’far, so he (Abu Ja’far) said: O Zurara, Abu Dhar رضي الله عنه and Uthman argued in the life-time of the prophet, so Uthman said: every kind wealth whether it be gold or silver which circulates [is active i.e. having in-flow and out-flow], is worked with [as a capital], and is used for business – then there is Zakat on it if a year elapses, so Abu Dhar رضي الله عنه said: as for that which is used for business, is active, and is worked with – then there is no Zakat on it, rather Zakat is on that which is buried treasure (found fortuitously) and also on stored-up (saved) wealth, so if a year elapses on it then on it is Zakat, so they argued and referred it back to the messenger of Allah صلى الله عليه وآله, so he said: the true position is what was said by Abu Dhar, so Abu Abdillah عليه السلام said to his father: you do not want anything else but that such a one [narration] comes out [and is spread among the people] so that the people stop giving their poor and needy (anything of Zakat)?! So his father said: keep to yourself [don’t interfere], I do not find any option other than it (to narrate what happened and speak the truth).

[-/4] التهذيب: سعد بن عبدالله عن أحمد بن محمد عن الحسين بن سعيد عن حماد بن عيسى عن عمر بن اذينة عن زرارة قال: كنت قاعدا عند ابي جعفر عليه السلام وليس عنده غير ابنه جعفر فقال: يا زرارة ان ابا ذر رضي الله عنه وعثمان تنازعا على عهد رسول الله صلى الله وآله فقال عثمان: كل مال من ذهب أو فضة يدار به ويعمل به ويتجر به ففيه الزكاة إذا حال عليه الحول، فقال ابوذر رضي الله عنه: أما ما إتجر به أو دير وعمل به فليس فيه زكاة، إنما الزكاة فيه إذا كان ركازا أو كنزا موضوعا فاذا حال عليه الحول ففيه الزكاة، فاختصما في ذلك إلى رسول الله صلى الله عليه وآله قال فقال: القول ما قال ابوذر، فقال ابوعبدالله عليه السلام لابيه: ما تريد إلى أن تخرج مثل هذا فكيف الناس أن يعطوا فقراء هم ومساكينهم؟! فقال ابوه عليه السلام: إليك عني لا أجد منها بدا