“Abu ‘Abd Allah (a.s.), once, read this verse from the Holy Quran. . those who do not spend excessively or with severe austerity, but with moderation,’ (25: 67) he (the Imam) then picked up a handful of pebbles and kept them firmly in his hand, saying, ‘This is severe austerity that Allah has mentioned in His book.’ He then picked up another handful of pebbles and then opened his hand altogether saying, ‘This is excessive spending.’ He then picked up a handful of pebbles, opened his hand half-way, and held some of the pebbles in his hand, saying, ‘This is moderation.’”