The first people who came to us (in Medina) were Musʿab bin ʿUmar and Ibn Um Maktum who were teaching Qur'an to the people. Then their came Bilal. Saʿd and ʿAmmar bin Yasir. After that ʿUmar bin Al-Khattab came along with twenty other companions of the Prophet. Later on the Prophet ﷺ himself (to Medina) and I had never seen the people of Medina so joyful as they were on the arrival of Allah's Apostle, for even the slave girls were saying, "Messenger of Allah ﷺ has arrived!" And before his arrival I had read the Sura starting with:-- "Glorify the Name of your Lord, the Most High" (87.1) together with other Suras of Al-Mufassal.
أَوَّلُ مَنْ قَدِمَ عَلَيْنَا مُصْعَبُ بْنُ عُمَيْرٍ وَابْنُ أُمِّ مَكْتُومٍ وَكَانَا يُقْرِئَانِ النَّاسَ فَقَدِمَ بِلاَلٌ وَسَعْدٌ وَعَمَّارُ بْنُ يَاسِرٍ ثُمَّ قَدِمَ عُمَرُ بْنُ الْخَطَّابِ فِي عِشْرِينَ مِنْ أَصْحَابِ النَّبِيِّ ﷺ ثُمَّ قَدِمَ النَّبِيُّ ﷺ فَمَا رَأَيْتُ أَهْلَ الْمَدِينَةِ فَرِحُوا بِشَىْءٍ فَرَحَهُمْ بِرَسُولِ اللَّهِ ﷺ حَتَّى جَعَلَ الإِمَاءُ يَقُلْنَ قَدِمَ رَسُولُ اللَّهِ ﷺ فَمَا قَدِمَ حَتَّى قَرَأْتُ {سَبِّحِ اسْمَ رَبِّكَ الأَعْلَى} فِي سُوَرٍ مِنَ الْمُفَصَّلِ