It wasnarrated from 'Abdur-Rahman bin 'Awf that the Messenger ofAllah(ﷺ) said:
"The one who fasts Ramadan while traveling is likeonewho breaks his fast when not traveling." (RU)
English reference (RU): Vol. 1, Book 7, Hadith 1666 (RU)
Arabic reference (RU): Book 7, Hadith 1735 (RU)