Sayyiduna Anas (may Allah be pleased with him) said: A man in al-Baqi' called out, "Abu al-Qasim!" The Messenger of Allah (peace and blessings be upon him) turned around to look, and the man said: O Messenger of Allah, I was calling so-and-so, not you. He (peace and blessings be upon him) said: "Name yourselves with my name, but do not take a kunyah like my kunyah."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الضحايا / 19325