(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]. (DE)
Reference (DE): Bulugh al-Maram 104 (DE)
In-book reference (DE): Book 1, Hadith 123 (DE)
English translation (DE): Book 1, Hadith 110 (DE)