Sayyiduna Abdullah bin Amr (may Allah be pleased with him) narrated: We set out (on a journey) with the Prophet (peace and blessings be upon him). Some of us were fasting and some of us were not fasting, and the one fasting did not find fault with the one not fasting, nor did the one not fasting find fault with the one fasting.
Imam al-Bazzar recorded this narration, and its chain is hasan (good).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصيام / 4912