Sunan Ibn Majah 106
It was narrated that 'Abdullah bin Salimah said:
"I heard 'Ali say: 'The best of people after the Messenger of Allah is Abu Bakr, and the best of people after Abu Bakr is 'Umar.'"
حَدَّثَنَا عَلِيُّ بْنُ مُحَمَّدٍ، حَدَّثَنَا وَكِيعٌ، حَدَّثَنَا شُعْبَةُ، عَنْ عَمْرِو بْنِ مُرَّةَ، عَنْ عَبْدِ اللَّهِ بْنِ سَلَمَةَ، قَالَ سَمِعْتُ عَلِيًّا، يَقُولُ خَيْرُ النَّاسِ بَعْدَ رَسُولِ اللَّهِ ـ ﷺ ـ أَبُو بَكْرٍ وَخَيْرُ النَّاسِ بَعْدَ أَبِي بَكْرٍ عُمَرُ .
Classification
Sahih (Authentic) [Darussalam]
References
Sunan Ibn Majah 106
Sunan Ibn Majah Vol. 1, Book of Purification and its Sunnah, Hadith 106