You offer a prayer which I did not see being offered by Messenger of Allah ﷺ when we were in his company and he certainly had forbidden it (i.e. two rakʿat after the ʿAsr prayer).  

إِنَّكُمْ لَتُصَلُّونَ صَلاَةً لَقَدْ صَحِبْنَا رَسُولَ اللَّهِ ﷺ فَمَا رَأَيْنَاهُ يُصَلِّيهَا وَلَقَدْ نَهَى عَنْهُمَا يَعْنِي الرَّكْعَتَيْنِ بَعْدَ الْعَصْرِ  

Muawiya said (to the people), "You offer a prayer which we, who were the companions of the Prophet ﷺ never saw the Prophet ﷺ offering, and he forbade its offering," i.e. the two rakʿat after the compulsory ʿAsr prayer.  

إِنَّكُمْ لَتُصَلُّونَ صَلاَةً لَقَدْ صَحِبْنَا النَّبِيَّ ﷺ فَمَا رَأَيْنَاهُ يُصَلِّيهَا وَلَقَدْ نَهَى عَنْهُمَا يَعْنِي الرَّكْعَتَيْنِ بَعْدَ الْعَصْرِ  

You offer a prayer which I did not see being offered by Messenger of Allah ﷺ when we were in his company and he certainly had forbidden it (i.e. two rakʿat after the ʿAsr prayer). (Using translation from Bukhārī 587)  

إِنَّكُمْ لَتُصَلُّونَ صَلَاةً لَقَدْ صَحِبْنَا رَسُولَ اللهِ ﷺ فَمَا رَأَيْنَاهُ يُصَلِّيهَا وَلَقَدْ نَهَى عَنْهُمَا يَعْنِي الرَّكْعَتَيْنِ بَعْدَ الْعَصْرِ  

[Machine] "You used to perform a prayer that the Messenger of Allah ﷺ did not pray, and he used to forbid it." "He means the two rak'ahs after Asr prayer."  

«إِنَّكُمْ لَتُصَلُّونَ صَلَاةً مَا كَانَ رَسُولُ اللهِ ﷺ يُصَلِّيهَا وَلَقَدْ كَانَ يَنْهَى عَنْهَا» «يَعْنِي الرَّكْعَتَيْنِ بَعْدَ الْعَصْرِ»  

[Machine] "You used to perform this prayer, indeed we accompanied the Messenger of Allah and we saw him praying this prayer after Asr prayer."  

«إِنَّكُمْ لَتُصَلُّونَ هَذِهِ الصَّلَاةَ لَقَدْ صَحِبْنَا رَسُولَ اللهِ وَرَأَيْنَاهُ فَمَا رَأَيْنَاهُ يُصَلِّي هَذِهِ الصَّلَاةَ بَعْدَ الصَّلَاةِ» يَعْنِي الْعَصْرَ