Amr bin Shu'ayb reports from his father, from his grandfather (may Allah be pleased with him), that the Messenger of Allah (peace and blessings be upon him) said: "There is no liability upon the one entrusted."
(b) "Whoever is entrusted with something is not liable for it."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الوديعة / 12700