I am a person much used to fasting. Should I fast during the journey? (The rest of the hadith is the same.)
Sahih Muslim Book 13, Hadith 134
← Previous Hadith This hadith has been narrated on the authority of Hisham with the same chain of transmitters.

Sahih Muslim Book 13, Hadith 133 Next Hadith → Messenger of Allah, I find strength in me for fasting on a journey; is there any sin upon me (in doing it)? Thereupon the Messenger of Allah (ﷺ) said: It is a concession from Allah. He who took advantage of it, it is good for him, and he who preferred to observe fast, there is no sin upon him. Harun (one of the narrators) in his narration said: 'lt is a concession, and he made no mention of" from Allah".

Sahih Muslim Book 13, Hadith 135