Sunan Ibn Majah 138
سنن ابن ماجه#138SahihIt was narrated from 'Abdullah bin Mas'ud that:Abu Bakr and 'Umar gave him the glad tidings that the Messenger of Allah had said: "Whoever would like to recite the Qur'an as fresh as when it was revealed, let him recite it like Ibn Umm 'Abd
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 ArnautHasan
Zubair Ali ZaiHasan