[Machine] I said by Allah, if I come to Abu Sa'id Al-Khudri and ask him about this hour, he might have knowledge about it. So I went to him and said, "O Abu Sa'id, Abu Hurayrah narrated to us about the hour that occurs on Fridays. Do you have any knowledge about it?" He said, "We asked the Prophet ﷺ about it, and he said, 'I used to know about it but then I forgot it like I forgot the Night of Decree.'" Then I left him and went to Abdullah bin Salam and mentioned the narration. "And this is a valid witness according to the conditions of the two sheikhs for the hadith of Yazid bin Al-Had and Muhammad bin Ishaq, and they did not exclude it." Valid.  

قُلْتُ وَاللَّهِ لَوْ جِئْتُ أَبَا سَعِيدٍ الْخُدْرِيَّ فَسَأَلْتُهُ عَنْ هَذِهِ السَّاعَةِ لَعَلَّهُ أَنْ يَكُونَ عِنْدَهُ مِنْهَا عِلْمٌ فَأَتَيْتُهُ فَقُلْتُ يَا أَبَا سَعِيدٍ إِنَّ أَبَا هُرَيْرَةَ حَدَّثَنَا عَنِ السَّاعَةِ الَّتِي فِي يَوْمِ الْجُمُعَةِ فَهَلْ عِنْدَكَ مِنْهَا عِلْمٌ؟ فَقَالَ سَأَلْنَا النَّبِيَّ ﷺ عَنْهَا فَقَالَ «إِنِّي كُنْتُ أَعْلَمُهَا ثُمَّ أُنْسِيتُهَا كَمَا أُنْسِيتُ لَيْلَةَ الْقَدْرِ» ثُمَّ خَرَجْتُ مِنْ عِنْدِهِ فَدَخَلْتُ عَلَى عَبْدِ اللَّهِ بْنِ سَلَامٍ ثُمَّ ذَكَرَ الْحَدِيثَ «وَهَذَا شَاهِدٌ صَحِيحٌ عَلَى شَرْطِ الشَّيْخَيْنِ لِحَدِيثِ يَزِيدَ بْنِ الْهَادِ وَمُحَمَّدِ بْنِ إِسْحَاقَ وَلَمْ يُخَرِّجَاهُ» صحيح