'I asked the Messenger of Allah(S.A.W): What is the Sunnah regarding a man among the people of the Shirk who accepts Islam at the hand of a man among the Muslims?' So the Messenger of Allah(S.A.W) said:
"He is the closet of the people to him in his life and in his death.'"
Jami` at-Tirmidhi Book 29, Hadith 23