Narrated Abu Huraira (rad):

Allah’s Messenger (ﷺ) said: “Beware of (smearing yourselves with) urine, because it is the main cause of punishment in the grave”. [Reported by Ad-Daraqutni]

وَعَنْ أَبِي هُرَيْرَةَ ‏- رضى الله عنه ‏- قَالَ: قَالَ رَسُولُ اَللَّهِ ‏- صلى الله عليه وسلم ‏-{ اِسْتَنْزِهُوا مِنْ اَلْبَوْلِ, فَإِنَّ عَامَّةَ عَذَابِ اَلْقَبْرِ مِنْهُ } رَوَاهُ اَلدَّارَقُطْنِيّ ُ [1]‏ .‏