Whose promise is more valuable?

Once a Dervish went into a Masjid and sat there with the intention of observing I'tikaaf. He had no provision of food or drink with him. The Imaam of the Masjid adviced him that as a destitute person, it was better for him not to observe I'tikaaf; he shouldrather do some job to earn his daily bread. The Dervish made no reply; the Imaam again insisted that he should go and earn his living, but he remained silent. After the Imaam had repeatedly asked him to do so for thethird and the fourth time, the Dervish said, "Beside the Masjid, there is a shop owned by a Jew, Who haspromised to send me two loaves of bread everyday." The Imaam said, "If he has promised to provide you food, it is well and good. Then you may observe I'tikaaf." TheDervish reprimandingly said, "It would be far better if you did not lead the prayers; with such a weak faith in 'Tauheed', how can you dare to lead the prayers? You have great reliance on the promise made by an unbeliving Jew but you put little trust in the promise made by Allah Ta'ala to provide sustenance (to all living things)."/ - - - :-> Transtors: 1.http://free-translation.imtranslator.net/lowres.asp 2.http://translate.google.com/m?twu=1&hl=en&vi=m&sl=auto&tl=en