عَنْ تَمِيمٍ الدَّارِيِّ قَالَتْ: سَأَلْتُ رَسُولَ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ: مَا السُّنَّةُ فِي الرَّجُلِ مِنْ أَهْلِ الْكُفْرِ يُسْلِمُ عَلَى يَدِ الرَّجُلِ مِنَ الْمُسْلِمِينَ؟ قَالَ: ((هُوَ أَوْلَى النَّاسِ بِحَيَاتِهِ وَمَوْتِهِ))
It is narrated from Sayyiduna Tamim Dari (may Allah be pleased with him), he says: I asked the Messenger of Allah (peace and blessings be upon him) that if a man from among the disbelievers accepts Islam at the hand of a Muslim, what will be the procedure regarding him? The Prophet (peace and blessings be upon him) said: This Muslim will have the greatest right over him, in his life and in his death, compared to others.