Sunan Ibn Majah 1664
سنن ابن ماجه#1664SahihIt was narrated from Ka’b bin ‘Asim that the Messenger of Allah (ﷺ) said:‘It is not an act of righteousness to fast while traveling.”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Fouad Abd al-BaqiSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 7:27