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