مِشْكَاةُ الْمَصَابِيحِ
Mishkat al-Masabih 1050
Prayer
Times when Prayer is Prohibited - Section 3
وَعَن مُعَاوِيَة قَالَ: إِنَّكُمْ لَتُصَلُّونَ صَلَاةً لَقَدْ صَحِبْنَا رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ فَمَا رَأَيْنَاهُ يُصَلِّيهِمَا وَلَقَدْ نَهَى عَنْهُمَا يَعْنِي الرَّكْعَتَيْنِ بَعْدَ الْعَصْر. رَوَاهُ البُخَارِيّ
Mu'awiya said, “You observe a prayer which we who were the companions of God's Messenger never saw him pray; indeed, he forbade them;”* meaning the two rak'as after the afternoon prayer. * The dual is used here, the reference being to the two rak’as. Bukhari transmitted it.
Mishkat al-Masabih, 1050صَحِيح (الألباني)