(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. (TH)
Reference (TH): Bulugh al-Maram 81 (TH)
In-book reference (TH): Book 1, Hadith 98 (TH)
English translation (TH): Book 1, Hadith 87 (TH)