It was narrated from Salim that:
A poet praised Bilal bin 'Abdullah and said: "Bilal bin 'Abdullah is better than any other Bilal." Ibn 'Umar said: 'You are lying. The Bilal of the Messenger of Allah is better than any other Bilal.'"
English reference: Vol. 1, Book 1, Hadith 152
Arabic reference: Book 1, Hadith 157