Yahya related to me from Malik from Hisham ibn Urwa from his father that Hamza ibn Amr al-Aslami once said to the Messenger of Allah, may Allah bless him and grant him peace, "Messenger of Allah, I am a man who fasts. Can I fast when travelling?" The Messenger of Allah, may Allah bless him and grant him peace, said, "If you want you can fast, and if you want you can break the fast."
Muwatta Malik Book 18, Hadith 26
← Previous Hadith Yahya related to me from Malik from Humayd at-Tawil that Anas ibn Malik said, "We once travelled with the Messenger of Allah, may Allah bless him and grant him peace, in Ramadan, and those who were fasting did not find fault with those who were not, and those who were not fasting did not find fault with those who were."

Muwatta Malik Book 18, Hadith 25 Next Hadith → Yahya related to me from Malik from Nafi that Abdullah ibn Umar used not to fast while travelling.

Muwatta Malik Book 18, Hadith 27