Anas reported that a Jewish woman brought the Prophet, may Allah bless him and grant him peace, poisoned sheep. He ate from it and she was brought. It was asked, "Should we not kill her?" "No," he replied.  

أَنَّ يَهُودِيَّةً أَتَتِ النَّبِيَّ ﷺ بِشَاةٍ مَسْمُومَةٍ فَأَكَلَ مِنْهَا فَجِيءَ بِهَا فَقِيلَ أَلاَ نَقْتُلُهَا؟ قَالَ لاَ قَالَ فَمَا زِلْتُ أَعْرِفُهَا فِي لَهَوَاتِ رَسُولِ اللهِ ﷺ  

'Abdullah ibn az-Zubayr said on the minbar, "Make allowances for people and command what is right and turn away from the ignorant." (7:199) He said, "By Allah, we are only commanded by this ayat to accept people's character. By Allah, I will accept people's character as long as I am with them."  

عَنِ الْجَاهِلِينَ قَالَ وَاللَّهِ مَا أَمَرَ بِهَا أَنْ تُؤْخَذَ إِلاَّ مِنْ أَخْلاَقِ النَّاسِ وَاللَّهِ لَآخُذَنَّهَا مِنْهُمْ مَا صَحِبْتُهُمْ  

Ibn 'Abbas reported that the Messenger of Allah, may Allah bless him and grant him peace, said, "Teach and make things easy and not difficult. When one of you is angry, he should be silent."  

قَالَ رَسُولُ اللهِ ﷺ عَلِّمُوا وَيَسِّرُوا وَلاَ تُعَسِّرُوا وَإِذَا غَضِبَ أَحَدُكُمْ فَلْيَسْكُتْ