Narrated `Aisha: I asked Allah's Messenger (ﷺ) about looking hither and thither in prayer. He replied, "It is a way of stealing by which Satan takes away (a portion) from the prayer of a person"
Book 10 · Hadith 145
صحيح البخاري
Narrated `Aisha: I asked Allah's Messenger (ﷺ) about looking hither and thither in prayer. He replied, "It is a way of stealing by which Satan takes away (a portion) from the prayer of a person"