Sayyiduna Suraqah bin Ju'sham (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings be upon him) said... And he narrated this hadith in brief. This hadith is authentic; it has been narrated by Bukhari.
Hadith Referenceمسند الشهاب / 112
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«إسناده صحيح ، وأخرجه ابن ماجه : 3686، وأحمد : 4/ 175»
Sayyiduna Abu Huraira (may Allah be pleased with him) reports that the Messenger of Allah (peace and blessings be upon him) said... and he narrated this hadith, and in it was also that: "There is a reward for every living being with a moist liver."
Hadith Referenceمسند الشهاب / 113
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«إسناده صحيح ، وأخرجه البخاري 2363، ومسلم : 2244، و أبو داود : 2550»
Sayyiduna Abdullah bin Amr (may Allah be pleased with them both) narrates that a man came to the service of the Messenger of Allah (peace and blessings be upon him) and began to submit... and he narrated this hadith, and in it was also that the Prophet (peace and blessings be upon him) said: "There is reward for (kindness to) every living being with a moist liver."