Sahih Muslim Book - 39, Hadith - 5859

حَدَّثَنَا قُتَيْبَةُ بْنُ سَعِيدٍ ، عَنْ مَالِكِ بْنِ أَنَسٍ ، فِيمَا قُرِئَ عَلَيْهِ عَنْ سُمَيٍّ ، مَوْلَى أَبِي بَكْرٍ ، عَنْ أَبِي صَالِحٍ السَّمَّانِ ، عَنْ أَبِي هُرَيْرَةَ ، أَنَّ رَسُولَ اللهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ 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 مِنِّي ، فَنَزَلَ الْبِئْرَ فَمَلأَ خُفَّهُ مَاءً ، ثُمَّ أَمْسَكَهُ بِفِيهِ حَتَّى رَقِيَ فَسَقَى الْكَلْبَ فَشَكَرَ اللَّهُ لَهُ فَغَفَرَ لَهُ قَالُوا : يَا رَسُولَ اللهِ ، وَإِنَّ لَنَا فِي هَذِهِ الْبَهَائِمِ لأَجْرًا ؟ فَقَالَ : فِي كُلِّ كَبِدٍ رَطْبَةٍ أَجْرٌ.

It was narrated from Abu Hurairah that the Messenger of Allah (s.a.w) said: “While a man was walking on the road, he became very thirsty. He found a well so he went down into it and frank, then he came out. There he saw a dog that was panting and biting the ground out of thirst. The man said: ‘This dog is feeling the same thirst that I felt.’ So he went back down into the well and filled his shoe with water, then he held it in his mouth until he climbed back up, and he gave the water to the dog. Allah appreciated (his action) and forgive him.” They said: “O Messenger of Allah, will we have reward with regard to these animals? He said: ‘In every living thing there is reward.”’