Sunan Ibn Majah 1641
سنن ابن ماجه#1641SahihIt was narrated from Abu Hurairah that the Messenger of Allah (ﷺ) said:‘Whoever fasts Ramadan out of faith and the hope of reward will be forgiven his previous sins.”
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 ZaiSahih - Bukhari And Muslim
In-book reference: 7:4