Al-Mughira ibn Shu'ba reported that a man said, "May Allah make the amir thrive! Your chamberlain recognises certain men and gives them preference in permission to enter." He said, "May Allah excuse him! Recognition is beneficial (dealing) with a vicious dog and attacking camel."

قَالَ رَجُلٌ أَصْلَحَ اللَّهُ الأَمِيرَ إِنَّ آذِنَكَ يَعْرِفُ رِجَالاً فَيُؤْثِرُهُمْ بِالإِذْنِ قَالَ عَذَرَهُ اللَّهُ إِنَّ الْمَعْرِفَةَ لَتَنْفَعُ عِنْدَ الْكَلْبِ الْعَقُورِ وَعِنْدَ الْجَمَلِ الصَّؤُولِ