Bismillah hir-Rahman nir-Rahim
Hadith: Ye to Daka
(way of stealing) hai jo shaitan bandey ki namaz par daalta hai.
Aisha Radiallahu anha se rivayat hai ki Mainey Rasoollallahu Sallallahu Alaihi Wasallam se namaz mein idhar udhar dekhney ke baarey mein pucha to Aap Sallallahu Alaihi Wasallam ne farmaya ye to Daka (ya chori) hai jo shaitan bandey ki namaz par daalta hai.
Narrated 'Aisha Radiallahu anha: I asked Allah's Apostle Sallallahu Alaihi Wasallam about looking hither and thither in prayer. He Sallallahu Alaihi Wasallam replied, "It is a way of stealing by which Satan takes away (a portion) from the prayer of a person."
Sahih Bukhari, Vol 1, Book 12, No. 718: