We used to travel during Ramadan. Some of us fasted and some of us did not, and the one fasting did not criticize the one not fasting, nor did the one not fasting criticize the one fasting.
أخبرنا يحيى بن حبيب بن عربي قال حدثنا حماد عن سعيد الجريري عن أبي نضرة قال
كنا نسافر في رمضان فمنا الصائم ومنا المفطر لا يعيب الصائم على المفطر ولا يعيب المفطر على الصائم
Muslim transmitted it, Fasting, chapter on the permissibility of fasting and breaking the fast during Ramadan for the traveler... etc., hadith no. 96/1116, from the hadith of Saeed Jariri, with this wording. It is also in Kubra, hadith no. 2618.Hammad is Ibn Zayd.