Isa b. Muhammed al-Qurtubi has said: "I planted melons, cucumbers, and gourd in a place in al-Jawaniya (village) by a well called Um 'Izam. When the blessing approached and the plants ripened, grasshoppers attacked them and ate them up. I paid a hundred and twenty dinars for sowing then and buying two camels. While I was sitting, I saw Imam Musa b. Ja'far walking towards me. He greeted me and said:
- How are you?
- It has become as black, barren land.
- How much have you paid to sow your land?
- A hundred and twenty dinars including the cost of two camels.
The Imam, peace be on him, turned to 'Arafa and ordered him: "Give to al-Mugheeth's son ('Isa) a hundred and fifty dinars."
Then he said to 'Isa: "Therefore, you have profited thirty dinars in addition to the two camels." ( Kashf al-Ghumma, p. 243.)