It is narrated from Sayyiduna Abu Hurairah, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: When the call to prayer (adhan) is given, Satan flees while passing wind loudly so that he does not hear the adhan. When the adhan is finished, he returns. Then, when the iqamah for prayer is pronounced, he flees again. When the iqamah is completed, he returns and begins to cast whispers between a person and his soul. He says (to the worshipper): Remember such-and-such work, remember such-and-such work—things which he did not remember before (he makes him remember). As a result, the person reaches a state where he does not know how much of the prayer he has performed.