A group of Bani Tamim came to the Prophet (and requested him to appoint a governor for them). Abu Bakr said, "Appoint Al-Qaqa bin Mabad." ʿUmar said, "Appoint Al-Aqra' bin Habeas." On that Abu Bakr said (to ʿUmar). "You did not want but to oppose me!" ʿUmar replied "I did not intend to oppose you!" So both of them argued till their voices grew loud. So the following Verse was revealed: 'O you who believe! Be not forward......' (49.1)

أَنَّهُ قَدِمَ رَكْبٌ مِنْ بَنِي تَمِيمٍ عَلَى النَّبِيِّ ﷺ فَقَالَ أَبُو بَكْرٍ أَمِّرِ الْقَعْقَاعَ بْنَ مَعْبَدٍ وَقَالَ عُمَرُ بَلْ أَمِّرِ الأَقْرَعَ بْنَ حَابِسٍ فَقَالَ أَبُو بَكْرٍ مَا أَرَدْتَ إِلَى أَوْ إِلاَّ خِلاَفِي فَقَالَ عُمَرُ مَا أَرَدْتُ خِلاَفَكَ فَتَمَارَيَا حَتَّى ارْتَفَعَتْ أَصْوَاتُهُمَا فَنَزَلَ فِي ذَلِكَ {يَا أَيُّهَا الَّذِينَ آمَنُوا لاَ تُقَدِّمُوا بَيْنَ يَدَىِ اللَّهِ وَرَسُولِهِ} حَتَّى انْقَضَتِ الآيَةُ

ʿAbdullah bin Az-Zubair said that a group of riders belonging to Banu Tamim came to the Prophet, Abu Bakr said (to the Prophet ﷺ ), "Appoint Al-Qa'qa bin Mabad bin Zurara as (their) ruler." ʿUmar said (to the Prophet). "No! But appoint Al-Aqra bin HʿAbis." Thereupon Abu Bakr said (to ʿUmar). "You just wanted to oppose me." ʿUmar replied. "I did not want to oppose you." So both of them argued so much that their voices became louder, and then the following Divine Verses were revealed in that connection:-- "O you who believe ! Do not be forward in the presence of Allah and His Apostle..." (till the end of Verse)...(49.1)

أَنَّهُ قَدِمَ رَكْبٌ مِنْ بَنِي تَمِيمٍ عَلَى النَّبِيِّ ﷺ فَقَالَ أَبُو بَكْرٍ أَمِّرِ الْقَعْقَاعَ بْنَ مَعْبَدِ بْنِ زُرَارَةَ قَالَ عُمَرُ بَلْ أَمِّرِ الأَقْرَعَ بْنَ حَابِسٍ قَالَ أَبُو بَكْرٍ مَا أَرَدْتَ إِلاَّ خِلاَفِي قَالَ عُمَرُ مَا أَرَدْتُ خِلاَفَكَ فَتَمَارَيَا حَتَّى ارْتَفَعَتْ أَصْوَاتُهُمَا فَنَزَلَ فِي ذَلِكَ {يَا أَيُّهَا الَّذِينَ آمَنُوا لاَ تُقَدِّمُوا} حَتَّى انْقَضَتْ