It wasnarrated from Jabir bin Samurah that the Prophet (ﷺ) said:
"Letthose who lift their gaze to the heavens desist, or their sightwillnot come back." (DE)
English reference (DE): Vol. 1, Book 5, Hadith 1045 (DE)
Arabic reference (DE): Book 5, Hadith 1098 (DE)