I would like to add a few ahadith n verses about apostates
1.MUN BADALA DEENOHO FAQTULOHO(SAHEE BUKHAREE)
he who changes his religion should be killed

2.a muslim's blood is not permitted to a muslim except on three conditions
1.adulterer
2.murderer
3.an apostate
(sahee bukharee,sahee muslim)

3.there is a verse of Quran
when any one of these(apostates)die donot offer their prayer n donot stand beside their graves because these have refused Allah n His Prophet n they have died in such a condition that they have crossed HADOOD of Allah(surah e touba 9/84)

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Allah is He,than Whom there is no God ;the Sovereign,the Holy One,the Source of Peace(n Perfection),the Guardian of Faith,the Preserver of Safety,the Exalted in Might,the Irresistible,the justly Proud glory to Allah!(High is He)above the partners they attribute to Him.(Surah e Hashar,verse #23)