describing the prophets (AS), said, 'They were people who were subject to oppression, whom Allah had tried with hunger, afflicted with difficulty, tested with fear, and shaken with troubles. If Allah had wished to open for His prophets treasures of gold, mines of pure gold and grounds of gardens wherever He sent them ... He would have done so, but if He did, tests would be invalid, and reward would be inapplicable. Rather, Allah the Glorified, made His prophets strong in their determination, and weak in their appearance as seen from the eyes, with contentment that fills the hearts and eyes with richness, and with poverty that pains the eyes and ears.'