We came to the Prophet ﷺ and we were (a few) young men of approximately equal age and stayed with him for twenty nights. Then he thought that we were anxious for our families, and he asked us whom we had left behind to look after our families, and we told him. He was kindhearted and merciful, so he said, "Return to your families and teach them (religious knowledge) and order them (to do good deeds) and offer your prayers in the way you saw me offering my prayers, and when the stated time for the prayer becomes due, then one of you should pronounce its call (i.e. the Adhan), and the eldest of you should lead you in prayer.  

أَتَيْنَا النَّبِيَّ ﷺ وَنَحْنُ شَبَبَةٌ مُتَقَارِبُونَ فَأَقَمْنَا عِنْدَهُ عِشْرِينَ لَيْلَةً فَظَنَّ أَنَّا اشْتَقْنَا أَهْلَنَا وَسَأَلَنَا عَمَّنْ تَرَكْنَا فِي أَهْلِنَا فَأَخْبَرْنَاهُ وَكَانَ رَفِيقًا رَحِيمًا فَقَالَ ارْجِعُوا إِلَى أَهْلِيكُمْ فَعَلِّمُوهُمْ وَمُرُوهُمْ وَصَلُّوا كَمَا رَأَيْتُمُونِي أُصَلِّي وَإِذَا حَضَرَتِ الصَّلاَةُ فَلْيُؤَذِّنْ لَكُمْ أَحَدُكُمْ ثُمَّ لِيَؤُمَّكُمْ أَكْبَرُكُمْ  

Messenger of Allah ﷺ said, "While a man was walking on a road. he became very thirsty. Then he came across a well, got down into it, drank (of its water) and then came out. Meanwhile he saw a dog panting and licking mud because of excessive thirst. The man said to himself "This dog is suffering from the same state of thirst as I did." So he went down the well (again) and filled his shoe (with water) and held it in his mouth and watered the dog. Allah thanked him for that deed and forgave him." The people asked, "O Messenger of Allah ﷺ! Is there a reward for us in serving the animals?" He said, "(Yes) There is a reward for serving any animate (living being) ."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ بَيْنَمَا رَجُلٌ يَمْشِي بِطَرِيقٍ اشْتَدَّ عَلَيْهِ الْعَطَشُ فَوَجَدَ بِئْرًا فَنَزَلَ فِيهَا فَشَرِبَ ثُمَّ خَرَجَ فَإِذَا كَلْبٌ يَلْهَثُ يَأْكُلُ الثَّرَى مِنَ الْعَطَشِ فَقَالَ الرَّجُلُ لَقَدْ بَلَغَ هَذَا الْكَلْبَ مِنَ الْعَطَشِ مِثْلُ الَّذِي كَانَ بَلَغَ بِي فَنَزَلَ الْبِئْرَ فَمَلأَ خُفَّهُ ثُمَّ أَمْسَكَهُ بِفِيهِ فَسَقَى الْكَلْبَ فَشَكَرَ اللَّهُ لَهُ فَغَفَرَ لَهُ قَالُوا يَا رَسُولَ اللَّهِ وَإِنَّ لَنَا فِي الْبَهَائِمِ أَجْرًا فَقَالَ فِي كُلِّ ذَاتِ كَبِدٍ رَطْبَةٍ أَجْرٌ  

Messenger of Allah ﷺ stood up for the prayer and we too stood up along with him. Then a bedouin shouted while offering prayer. "O Allah! Bestow Your Mercy on me and Muhammad only and do not bestow it on anybody else along with us." When the Prophet ﷺ had finished his prayer with Taslim, he said to the Bedouin, "You have limited (narrowed) a very vast (thing)," meaning Allah's Mercy.  

قَامَ رَسُولُ اللَّهِ ﷺ فِي صَلاَةٍ وَقُمْنَا مَعَهُ فَقَالَ أَعْرَابِيٌّ وَهْوَ فِي الصَّلاَةِ اللَّهُمَّ ارْحَمْنِي وَمُحَمَّدًا وَلاَ تَرْحَمْ مَعَنَا أَحَدًا فَلَمَّا سَلَّمَ النَّبِيُّ ﷺ قَالَ لِلأَعْرَابِيِّ لَقَدْ حَجَّرْتَ وَاسِعًا يُرِيدُ رَحْمَةَ اللَّهِ  

Messenger of Allah ﷺ said, "You see the believers as regards their being merciful among themselves and showing love among themselves and being kind, resembling one body, so that, if any part of the body is not well then the whole body shares the sleeplessness (insomnia) and fever with it."  

قَالَ رَسُولُ اللَّهِ ﷺ تَرَى الْمُؤْمِنِينَ فِي تَرَاحُمِهِمْ وَتَوَادِّهِمْ وَتَعَاطُفِهِمْ كَمَثَلِ الْجَسَدِ إِذَا اشْتَكَى عُضْوًا تَدَاعَى لَهُ سَائِرُ جَسَدِهِ بِالسَّهَرِ وَالْحُمَّى  

The Prophet ﷺ said, "If any Muslim plants any plant and a human being or an animal eats of it, he will be rewarded as if he had given that much in charity."  

عَنِ النَّبِيِّ ﷺ قَالَ مَا مِنْ مُسْلِمٍ غَرَسَ غَرْسًا فَأَكَلَ مِنْهُ إِنْسَانٌ أَوْ دَابَّةٌ إِلاَّ كَانَ لَهُ صَدَقَةً  

The Prophet ﷺ said, "He who is not merciful to others, will not be treated mercifully.  

عَنِ النَّبِيِّ ﷺ قَالَ مَنْ لاَ يَرْحَمُ لاَ يُرْحَمُ