The one who fasts while traveling is like the one who breaks his fast while at home.
أخبرني محمد بن يحيى بن أيوب قال حدثنا أبو معاوية قال حدثنا ابن أبي ذئب عن الزهري
الصائم في السفر كالمفطر في الحضر
[Its chain is daif] and it is in Sunan al-Kubra, hadith no. 2595. Zuhri narrated with "an" without specifying direct hearing, as mentioned previously, hadith no. 1207.