Bulugh al-Maram
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 .
Reference