Sahih Bukhari
Merits of the Helpers in Madinah (Ansaar)
Volume: 005 / Book Number: 058 / Hadith Number: 181
Narrated Abu Huraira:
The Prophet said, "The most true words said by a poet was the words of Labid." He said, Verily, Everything except Allah is perishable and Umaiya bin As-Salt was about to be a Muslim (but he did not embrace Islam).