"The final words of the Adhan of Bilal were: 'Allahu Akbar, Allahu Akbar, Allahu Akbar; La ilaha illallah (Allah is the Greatest, Allah is the Greatest, there is none worthy of worship except Allah.)'"
Sunan an-Nasa'i Book 7, Hadith 25
← Previous Hadith "The final words of the Adhan are: 'Allahu Akbar, Allahu Akbar; La ilaha illallah (Allah is the Greatest, Allah is the Greatest, there is none worthy of worship except Allah.)'"

Sunan an-Nasa'i Book 7, Hadith 24 Next Hadith → (Another chain) from Ibrahim, from Al-Aswad, with similar narration.

Sunan an-Nasa'i Book 7, Hadith 26