Sahih Bukhari
Good Manners and Form (Al-Adab)
Volume: 008 / Book Number: 073 / Hadith Number: 168
Narrated Abu Huraira:
The Prophet said, "The most true words said by a poet were the words of Labid. He said, i.e. 'Verily, everything except Allah is perishable and Umaiya bin Abi As-Salt was about to embrace Islam '