(28) باب تَسْوِيَةِ الصُّفُوفِ وَإِقَامَتِهَا وَفَضْلِ الأَوَّلِ فَالأَوَّلِ مِنْهَا وَالاِزْدِحَامِ عَلَى الصَّفِّ الأَوَّلِ وَالْمُسَابَقَةِ إِلَيْهَا وَتَقْدِيمِ أُولِي الْفَضْلِ وَتَقْرِيبِهِمْ مِنَ الإِمَامِ
Abu Sa'id al-Khudri reported:
The Messenger of Allah (ﷺ) saw people at the end of the mosque, and then the (above-mentioned hadith) was narrated. (RU)
Reference (RU): Sahih Muslim 438 b (RU)
In-book reference (RU): Book 4, Hadith 145 (RU)
USC-MSA web (English) reference(deprecated numbering scheme): Book 4, Hadith 879 (RU)