Yahya related to me from Malik from Abu'z-Zinad from al-Araj fromAbu Hurayra that the Messenger of Allah, may Allah bless him and granthim peace, said, "When the call to prayer is made Shaytan retreats,passing wind, so that he will not hear the adhan. When the adhan iscompleted he comes back, until, when the iqama is said, he retreatsagain. When the iqama is completed, he comes back, until he comesbetween a man and his self and says, 'Think of such and such, think ofsuch and such,' which he was not thinking about before, until the mandoes not know how much he has prayed."
App reference: Book 3, Hadith 6
USC-MSA web (English) reference: Book 3, Hadith 6
Arabic reference: Book 3, Hadith 152