"The Messenger of Allah said: 'It is not righteousness to fast when traveling."' (Sahih) Abu 'Abdur-Rahman (An-Nasai) said: This is a mistake, and what is correct is the one that is before it. We do not know of anyone who followed up Ibn Kathir.
Sunan an-Nasa'i Book 22, Hadith 167
← Previous Hadith "I heard the Messenger of Allah say; 'It is not righteousness to fast when traveling."'

Sunan an-Nasa'i Book 22, Hadith 166 Next Hadith → the Messenger of Allah saw some people gathered around a man, so he asked (what was happening) and they said: "It is a man who is exhausted because of fasting." The Messenger of Allah said: "It is not righteousness to fast when traveling."

Sunan an-Nasa'i Book 22, Hadith 168