Ibn ‘Umar said: 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.
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا الْقَعْنَبِيُّ، حَدَّثَنَا أَنَسٌ يَعْنِي ابْنَ عِيَاضٍ، ح وَحَدَّثَنَا الْهَيْثَمُ بْنُ خَالِدٍ الْجُهَنِيُّ، - الْمَعْنَى - قَالاَ حَدَّثَنَا ابْنُ نُمَيْرٍ، عَنْ عُبَيْدِ اللَّهِ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، أَنَّهُ قَالَ لَمَّا قَدِمَ الْمُهَاجِرُونَ الأَوَّلُونَ نَزَلُوا الْعَصْبَةَ قَبْلَ مَقْدَمِ النَّبِيِّ صلى الله عليه وسلم فَكَانَ يَؤُمُّهُمْ سَالِمٌ مَوْلَى أَبِي حُذَيْفَةَ وَكَانَ أَكْثَرَهُمْ قُرْآنًا . زَادَ الْهَيْثَمُ وَفِيهِمْ عُمَرُ بْنُ الْخَطَّابِ وَأَبُو سَلَمَةَ بْنُ عَبْدِ الأَسَدِ .
sunnah.com