Hadith 118

Bulugh al-Maram

Book 2: The Book of Prayer
وَعَنْ جَابِرِ بْنِ سَمُرَةٍ ‏- رضى الله عنه ‏- قَالَ : قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ لَيَنْتَهِيَنَّ قَوْمٌ يَرْفَعُونَ أَبْصَارَهُمْ إِلَى اَلسَّمَاءِ فِي اَلصَّلَاةِ أَوْ لَا تَرْجِعَ إِلَيْهِمْ } رَوَاهُ مُسْلِمٌ .‏ 1‏
Jabir bin Samura (RA):

Allah's Messenger (ﷺ) said: "Those people who raise their eyes to heaven while in Salat (prayer) should stop (doing so) or else their sight will not return to them." [Reported by Muslim].