It has been ordered explicitly in this Hadith which its...

It has been ordered explicitly in this Hadith which its evidence is completely reliable that people have to pat the Khums from surplus of their income from lands after subtracting the costs of living and as you see former Imam (a.s.) had not taken more than one twelfth, according to what we said before, because some of Imams (a.s.) forgave all or a part of Khums to Shiites due to conditions of their time in order that Shiites not be under pressure.[^3] 4- Two of reliable Hadith tellers “Ahmad ibn Muhammad” and “Abdullah ibn Muhammad” quote from Ali ibn Mahzyar who was one of deputies of Imam Javad and Imam Hadi (a.s.) that ninth Imam, Imam Javad (a.s.), had been wrote to him in a letter, and we read this letter in the way to Mecca, that: “The thing which I necessitate only in this year, year 220, by the reason which I do not want to explain in order not to be broadcasted and Allah willing I will explain some of that for you in near future, is that my friends whom I ask for their expedience from Allah or some of them have failed to do their obligatory duty, I knew that and I wanted to purify them with the thing which I had done this year in Khums; almighty Allah has said that take alms from their assets and purify them by that and pray for them, that your pray is the cause of their peace and Allah is hearing and wise.