Abu Bakra wrote to his son who was in Sijistan: 'Do not judge between two persons when you are angry, for I heard the Prophet ﷺ saying, "A judge should not judge between two persons while he is in an angry mood."  

كَتَبَ أَبُو بَكْرَةَ إِلَى ابْنِهِ وَكَانَ بِسِجِسْتَانَ بِأَنْ لاَ تَقْضِيَ بَيْنَ اثْنَيْنِ وَأَنْتَ غَضْبَانُ فَإِنِّي سَمِعْتُ النَّبِيَّ ﷺ يَقُولُ لاَ يَقْضِيَنَّ حَكَمٌ بَيْنَ اثْنَيْنِ وَهْوَ غَضْبَانُ  

A man came to Messenger of Allah ﷺ and said, "O Messenger of Allah ﷺ! By Allah, I fail to attend the morning congregational prayer because so-and-so (i.e., Muʿadh bin Jabal) prolongs the prayer when he leads us for it." I had never seen the Prophet ﷺ more furious in giving advice than he was on that day. He then said, "O people! some of you make others dislike (good deeds, i.e. prayers etc). So whoever among you leads the people in prayer, he should shorten it because among them there are the old, the weak and the busy (needy having some jobs to do). (See Hadith No. 90, Vol. 1)  

جَاءَ رَجُلٌ إِلَى رَسُولِ اللَّهِ ﷺ فَقَالَ يَا رَسُولَ اللَّهِ إِنِّي وَاللَّهِ لأَتَأَخَّرُ عَنْ صَلاَةِ الْغَدَاةِ مِنْ أَجْلِ فُلاَنٍ مِمَّا يُطِيلُ بِنَا فِيهَا قَالَ فَمَا رَأَيْتُ النَّبِيَّ ﷺ قَطُّ أَشَدَّ غَضَبًا فِي مَوْعِظَةٍ مِنْهُ يَوْمَئِذٍ ثُمَّ قَالَ يَا أَيُّهَا النَّاسُ إِنَّ مِنْكُمْ مُنَفِّرِينَ فَأَيُّكُمْ مَا صَلَّى بِالنَّاسِ فَلْيُوجِزْ فَإِنَّ فِيهِمُ الْكَبِيرَ وَالضَّعِيفَ وَذَا الْحَاجَةِ  

That he had divorced his wife during her menses. ʿUmar mentioned that to the Prophet. Allah's Apostle became angry and said, "He must take her back (his wife) and keep her with him till she becomes clean from her menses and then to wait till she gets her next period and becomes clean again from it and only then, if he wants to divorce her, he may do so."  

أَخْبَرَهُ أَنَّهُ طَلَّقَ امْرَأَتَهُ وَهْىَ حَائِضٌ فَذَكَرَ عُمَرُ لِلنَّبِيِّ ﷺ فَتَغَيَّظَ فِيهِ رَسُولُ اللَّهِ ﷺ ثُمَّ قَالَ لِيُرَاجِعْهَا ثُمَّ لْيُمْسِكْهَا حَتَّى تَطْهُرَ ثُمَّ تَحِيضَ فَتَطْهُرَ فَإِنْ بَدَا لَهُ أَنْ يُطَلِّقَهَا فَلْيُطَلِّقْهَا