Narrated 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)

حَدَّثَنَا مُحَمَّدُ بْنُ سُلَيْمَانَ الأَنْبَارِيُّ، حَدَّثَنَا عَبْدُ الرَّحْمَنِ، عَنْ سُفْيَانَ، عَنْ مَنْصُورٍ، عَنْ رِبْعِيِّ بْنِ حِرَاشٍ، عَنِ الْبَرَاءِ بْنِ نَاجِيَةَ، عَنْ عَبْدِ اللَّهِ بْنِ مَسْعُودٍ، عَنِ النَّبِيِّ ﷺ قَالَ " تَدُورُ رَحَى الإِسْلاَمِ لِخَمْسٍ وَثَلاَثِينَ أَوْ سِتٍّ وَثَلاَثِينَ أَوْ سَبْعٍ وَثَلاَثِينَ فَإِنْ يَهْلِكُوا فَسَبِيلُ مَنْ هَلَكَ وَإِنْ يَقُمْ لَهُمْ دِينُهُمْ يَقُمْ لَهُمْ سَبْعِينَ عَامًا " . قَالَ قُلْتُ أَمِمَّا بَقِيَ أَوْ مِمَّا مَضَى قَالَ " مِمَّا مَضَى " . قَالَ أَبُو دَاوُدَ مَنْ قَالَ خِرَاشٍ فَقَدْ أَخْطَأَ .