Abdullah bin Wahb narrates from Tamim al-Dari (may Allah be pleased with him) that (he asked): "O Messenger of Allah! A man from the polytheists accepts Islam at the hands of a Muslim man?" He (peace and blessings be upon him) said: "He has the greater right over him in his life and his death."
(The narrator) said 'Ibn Wahb' thus.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الولاء / 21461