Sunan Abi Dawud 4254
سنن أبي داود#4254SahihNarrated Abdullah ibn Mas'ud: The Prophet (ﷺ) said: The mill of Islam will go round till the year thirty-five, or thirty-six, or thirty-seven; then if they perish, they will have followed the path of those who perished before them, but if their religion is maintained, it will be maintained for seventy years. I asked: Does it mean seventy years which remain or seventy years which are gone by? He replied: It means (seventy years) that are gone by. Abu Dawud said: Those who recorded Khirash, the name of a narrator, are wrong. (The correct name is Hirash)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Zubair Ali ZaiIsnaad Hasan
In-book reference: 37:15