"Mu'aiqib told me that the Messenger of Allah (ﷺ) said: 'If you have to do that, then do it only once.'"
Sunan an-Nasa'i Book 13, Hadith 14
← Previous Hadith "The Messenger of Allah (ﷺ) said: 'When any one of you stands in prayer, let him not smooth the pebbles, for he is facing Mercy.'"

Sunan an-Nasa'i Book 13, Hadith 13 Next Hadith → The Messenger of Allah (ﷺ) said: "What is the matter with people who lift their gaze to the sky when praying?" And he spoke sternly concerning that until he said: "They must stop that or they will certainly lose their eyesight."

Sunan an-Nasa'i Book 13, Hadith 15