Yahya related to me from Malik from Ibn Shihab that Abd ar-Rahmanibn Kab ibn Malik al-Ansari told him that his father, Kab ibn Malik,used to relate that the Messenger of Allah, may Allah bless him andgrant him peace, said, "The ruh of the mumin is a bird that sits inthe trees of the Garden until Allah returns it to his body on the dayHe raises him ."
USC-MSA web (English) reference: Book 16, Hadith 50
Arabic reference: Book 16, Hadith 572