(55) باب ذِكْرِ الاِخْتِلاَفِ عَلَى مَنْصُورٍ
It was narrated that Ibn 'Abbas said:
"The Messenger of Allah traveled during Ramadan and fasted until he reached 'Usfan. Then he called for a vessel and drank during the day when the prople could see him, then he did not fast."
Reference: Sunan an-Nasa'i 2291
In-book reference: Book 22, Hadith 202
English translation: Vol. 3, Book 22, Hadith 2293