If someone utters the Two Testimonies on his deathbed and then dies, is he considered to have died a believing Muslim who will eventually enter Paradise, even if he spends a period in Hell?

It was reported from the Messenger of Allah, peace and blessings be upon him, that whoever's last words are "There is no god but Allah" will enter Paradise.

If a Muslim says it, it is a sign of a good ending. Scholars differed on whether it forgives sins related to others or not. Some said that it is a sign of goodness that does not imply salvation from punishment, while others said that it is sufficient for entering Paradise initially, especially if it is intended with repentance and remorse, as Allah will compensate those whose rights were violated.

As for a disbeliever who utters it before death, it is considered a word of Islam by which his past disbelief and sins are forgiven. The Prophet, peace and blessings be upon him, commanded Abu Talib and the Jewish boy to say it before their deaths.

"There is no god but Allah" is a word of Islam and remembrance. If a disbeliever says it to enter Islam, it means both testimonies together. However, if a Muslim says it as remembrance, then it is a form of remembrance.