It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: "I asked Jibril which of the two terms Musa (peace be upon him) completed. Jibril said: 'The one of them that was complete (10) and perfect.'"
Hadith Referenceالسنن الكبرى للبيهقي / كتاب المساقاة / 11639