آداب قضاء الحاجة
Abu Hurayrah (may Allah be pleased with him) reported that the Prophet (may Allah's peace and blessings be upon him) said: "Beware of (smearing yourselves with) urine, because it is the main cause of punishment in the grave."
عن أبي هريرة -رضي الله عنه- مرفوعًا: «اسْتَنْزِهوا من البول؛ فإنَّ عامَّة عذاب القبر منه».
شرح الحديث :
In this Hadīth, the Prophet (may Allah's peace and blessings be upon him) draws our attention to one of the most common causes of punishment in the grave. It is the habit of not keeping away or purifying oneself from urine.