Abu Yahya al-Saji (may Allah have mercy on him) narrated in his book, with a chain in which there is weakness, from Ubadah bin Nusayy, from Ibn Ghanm, from Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him), from the Prophet (peace and blessings be upon him): "And for (destroying) the faculty of hearing there are one hundred camels (as blood money)."
Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) narrates from the Prophet (peace and blessings be upon him): "For hearing, the blood money is 100 camels."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الديات / 16224