16. Al-Husayn ibn Muhammad an Muhammad ibn Yahya all have narrated from Ali ibn Muhammad ibn Sa’d from Muhammad ibn Muslim from Muhammad ibn Sa’id ibn Ghazwan from Ali ibn al-Hakam from ‘Umar ibn Aban from ‘Isa ibn abu Mansur who has said the following: “I heard Abu ‘Abdillah saying, ‘A breath with a sigh of concern and sadness due to injustice done to us is Tasbih (speaking of the glory of Allah) and one’s concern about our cause is worship, his concealing our secret is Jihad (hard work for the cause of Allah).”’ “Muhammad ibn Sa’id told me to write it down with gold. I then did not write anything better than that.”