(7) باب قضاء الحاجة
and Al-Hakim reported that:
"Urination is the main cause of punishment in the grave". [Its chain of narrators is authentic]. (PT)
Reference (PT): Bulugh al-Maram 104 (PT)
In-book reference (PT): Book 1, Hadith 123 (PT)
English translation (PT): Book 1, Hadith 110 (PT)