Hadith 397
Muhammad bin Amr bin al-Hasan reported: We asked Jabir about the time of the prayer of the Messenger of Allah ﷺ. He said: He used to offer the Zuhr prayer in the midday heat, the Asr prayer when the sun was bright, the Maghrib prayer when the sun had completely set, the Isha prayer early when many people were present, but late if there were few, and the Fajr prayer in the darkness (of the dawn).
Hadith 2407
Narrated Jabir bin Abdullah: The Prophet ﷺ saw a man who had been put in the shade and saw a crowd of people around him (in the course of a journey). He said: Fasting while on journey is not part of righteousness.