(6) باب نواقض الوضوء
Also reported by Abu Da'ud mentioning the above addition without the words "the string is untied", but both versions are weak. (TR)
Reference (TR): Bulugh al-Maram 81 (TR)
In-book reference (TR): Book 1, Hadith 98 (TR)
English translation (TR): Book 1, Hadith 87 (TR)