Suraqa ibn Ju’shum reported: I asked the Messenger of Allah, peace and blessings be upon him, about a lost camel who comes to drink from my cisterns that I have prepared for my own camels, “Will I be rewarded if I give it some water to drink?” The Prophet said, “Yes, in every living being with a warm liver is a reward for charity.”
Source: Sunan Ibn Mājah 3686
Grade: Sahih (authentic) according to Al-Albani
عَنْ سُرَاقَةَ بْنِ جُعْشُمٍ قَالَ سَأَلْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ عَنْ ضَالَّةِ الْإِبِلِ تَغْشَى حِيَاضِي قَدْ لُطْتُهَا لِإِبِلِي فَهَلْ لِي مِنْ أَجْرٍ إِنْ سَقَيْتُهَا قَالَ نَعَمْ فِي كُلِّ ذَاتِ كَبِدٍ حَرَّى أَجْرٌ
سنن ابن ماجه كتاب الأدب باب فضل صدقة الماء 3686
4263 المحدث الألباني خلاصة حكم المحدث صحيح في صحيح الجامع