when the first emigrants came (to Madina), they stayed at al-‘Asbah (a place near Madina) before the advent of the Messenger of Allah ﷺ. Salim, the client of Abu Hudhaifah, acted as their imam, as he knew the Qur’an better than all of them, al-Haitham(the narrator) added: and ‘Umar b. al-Khattab and Abu Salamah b. ‘Abd al-Asad were among them. (Using translation from Abū Dāʾūd 588)   

لَمَّا قَدِمَ الْمُهَاجِرُونَ الْأَوَّلُونَ نَزَلُوا الْعَصْبَةَ قَبْلَ مَقْدَمِ رَسُولِ اللهِ ﷺ وَكَانَ يَؤُمُّهُمْ سَالِمٌ مَوْلَى أَبِي حُذَيْفَةَ وَكَانَ أَكْثَرَهُمْ قُرْآنًا زَادَ الْهَيْثَمُ وَفِيهِمْ عُمَرُ بْنُ الْخَطَّابِ وَأَبُو سَلَمَةَ بْنُ عَبْدِ الْأَسَدِ  

[Machine] He informed him. He said, "Salim, the servant of Abu Hudhayfah, used to lead the first immigrants and companions of the Messenger of Allah ﷺ from the Ansar in the Quba Mosque. Among them were Abu Bakr, Umar, Abu Salamah, Zaid ibn Harithah, and 'Amir ibn Rabiah." The sheikh said, "So he said this about this and about what came before it and among them were Abu Bakr and Umar. And it is possible that at another time Abu Bakr came with the Prophet ﷺ and it is possible that his leadership over them was before his arrival and after it." And the statement of the narrator was "and among them were Abu Bakr," meaning after his arrival. And Allah knows best.  

أَخْبَرَهُ قَالَ كَانَ سَالِمٌ مَوْلَى أَبِي حُذَيْفَةَ يَؤُمُّ الْمُهَاجِرِينَ الْأَوَّلِينَ وَأَصْحَابَ رَسُولِ اللهِ ﷺ مِنَ الْأَنْصَارِ فِي مَسْجِدِ قُبَاءَ فِيهِمْ أَبُو بَكْرٍ وَعُمَرُ وَأَبُو سَلَمَةَ وَزَيْدُ بْنُ حَارِثَةَ وَعَامِرُ بْنُ رَبِيعَةَ قَالَ الشَّيْخُ كَذَا قَالَ فِي هَذَا وَفِيمَا قَبْلَهُ وَفِيهِمْ أَبُو بَكْرٍ وَعُمَرُ وَلَعَلَّهُ فِي وَقْتٍ آخَرَ فَإِنَّهُ إِنَّمَا قَدِمَ أَبُو بَكْرٍ ؓ مَعَ النَّبِيِّ ﷺ وَيُحْتَمَلُ أَنْ تَكُونَ إِمَامَتُهُ إِيَّاهُمْ قَبْلَ قُدُومِهِ وَبَعْدَهُ وَقَوْلُ الرَّاوِي وَفِيهِمْ أَبُو بَكْرٍ أَرَادَ بَعْدَ قُدُومِهِ وَاللهُ أَعْلَمُ  

Whom have you appointed as your deputy over the people of the valley? He said: I have appointed Ibn Abza over them, ‘Umar said: Who is Ibn Abza? Nafiʼ said: One of our freed slaves. ‘Umar said: Have you appointed a freed slave over them? Nafi’ said: He has great knowledge of the Book of Allah, is well versed in the rules of inheritance (al­-fara'id) and is a (good) qadi (judge). 'Umar said. Indeed your Prophet ﷺ said, “Allah raises some people (in status) by means of this Book and brings others low by means of it.” (Using translation from Aḥmad 232)   

لَهُ عُمَرُ ؓ مَنِ اسْتَخْلَفْتَ عَلَى أَهْلِ الْوَادِي؟ فَقَالَ اسْتَخْلَفْتُ عَلَيْهِمُ ابْنَ أَبْزَى فَقَالَ عُمَرُ مَنِ ابْنُ أَبْزَى؟ فَقَالَ نَافِعٌ مَوْلًى مِنْ مَوَالِينَا فَقَالَ عُمَرُ وَاسْتَخْلَفْتَ عَلَيْهِمْ مَوْلًى؟ فَقَالَ يَا أَمِيرُ الْمُؤْمِنِينَ إِنَّهُ قَارِئٌ لِكِتَابِ اللهِ عَالِمٌ بِالْفَرَائِضِ فَقَالَ عُمَرُ ؓ أَمَا إِنَّ رَسُولَ اللهِ ﷺ قَدْ قَالَ إِنَّ اللهَ يَرْفَعُ بِهَذَا الْكِتَابِ أَقْوَامًا وَيَضَعُ بِهِ آخَرِينَ