Sayyiduna Abdullah bin al-Harith (may Allah be pleased with him) says: The Messenger of Allah (peace and blessings be upon him) offered the funeral prayer over Sayyiduna Hamzah (may Allah be pleased with him) and said nine takbirs.
This is more likely to be preserved, and it is munqati' (broken).
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجنائز / 6806