And this was the legacy that Abraham
left to his sons, and so did Jacob;
 "Oh my sons! Allah hath chosen the Faith for you;
then die not except in the Faith of Islam."

Quran

Surat Al-Baqarah (The Cow) - سورة البقرة  2:132

tafsir:

(Saying), "O my sons! Allah has chosen for you the (true) religion, then die not except as Muslims.'') meaning, perform righteous deeds during your lifetime and remain on this path, so that Allah will endow you with the favor of dying upon it. Usually, one dies upon the path that he lived on and is resurrected according to what he died on. Allah, the Most Generous, helps those who seek to do good deeds to remain on the righteous path.