Allah Ta’ala mentions in the Quran:
لَّقَدْ كَانَ لَكُمْ فِي رَسُولِ اللَّهِ أُسْوَةٌ حَسَنَةٌ لِّمَن كَانَ يَرْجُو اللَّهَ وَالْيَوْمَ الْآخِرَ وَذَكَرَ اللَّهَ كَثِيرًا
Certainly for you in Rasulullah (sallallahu ‘alayhi wasallam) is an excellent example; for one whose hope is in Allah and the Last Day and [who] remembers Allah often.
(Surah Ahzab, verse: 21)
One great Sunnah of Nabi (sallallahu ‘alayhi wasallam) is his sublime akhlaq [character] and his compassion and forgiveness to those who wronged him.
Here is a talk delivered by my beloved father, Moulana Haroon Abasoomar (may Allah protect him) on the aspect of the sublime Sunnah of Rasulullah (sallallahu ‘alayhi wasallam).