[Machine] About the ablution of Muawiyah, he demonstrated to them the ablution of the Messenger of Allah ﷺ , and he performed ablution three times except for washing his feet a specific number of times.  

عَنْ وُضُوءِ مُعَاوِيَةَ يُرِيهُمْ وُضُوءَ رَسُولِ اللهِ ﷺ فَتَوَضَّأَ ثَلَاثًا إِلَّا غَسْلَ رِجْلَيْهِ بِغَيْرِ عَدَدٍ  

I heard the Messenger of Allah ﷺ say: If you search for the faults of the people, you will corrupt them, or will nearly corrupt them. AbudDarda' said: These are the words which Mu'awiyah himself from the Messenger of Allah ﷺ, and Allah benefited him by them. (Using translation from Abū Dāʾūd 4888)  

سَمِعْتُ رَسُولَ اللهِ ﷺ يَقُولُ «إِنَّكَ إِنِ اتَّبَعْتَ عَوْرَاتِ النَّاسِ أَفْسَدْتَهُمْ أَوْ كِدْتَ أَنْ تُفْسِدَهُمْ» قَالَ يَقُولُ أَبُو الدَّرْدَاءِ كَلِمَةٌ سَمِعَهَا مُعَاوِيَةُ مِنْ رَسُولِ اللهِ ﷺ نَفَعَهُ اللهُ بِهَا