'Abdullah b. Buraida (Allah be pleased with him) reported on the authority of his father: I was sitting with the Apostle of Allah ﷺ ; the rest of the hadith is the same but with this variation that the (the narrator) said: "Fasts of two months."

وَحَدَّثَنَاهُ أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا عَبْدُ اللَّهِ بْنُ نُمَيْرٍ، عَنْ عَبْدِ اللَّهِ بْنِ عَطَاءٍ، عَنْ عَبْدِ اللَّهِ بْنِ بُرَيْدَةَ، عَنْ أَبِيهِ، - رضى الله عنه - قَالَ كُنْتُ جَالِسًا عِنْدَ النَّبِيِّ ﷺ . بِمِثْلِ حَدِيثِ ابْنِ مُسْهِرٍ غَيْرَ أَنَّهُ قَالَ صَوْمُ شَهْرَيْنِ .