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." (ID)
English reference (ID): Vol. 1, Book 7, Hadith 1666 (ID)
Arabic reference (ID): Book 7, Hadith 1735 (ID)