The Prophet ﷺ said, "Whoever's last words are 'There is no god but Allah' will be granted Paradise."
حدثنا عبد الله حدثني أبي حدثنا أبو عاصم حدثنا عبد الحميد بن جعفر عن صالح بن أبي عريب عن كثير بن مرة
قال النبي ﷺ من كان آخر كلامه لا إله إلا الله وجبت له الجنة
Its isnad is sahih. Salih bin Abu Urayb is acceptable, Ibn Hibban and Ajli deemed him trustworthy, while the others remained silent about him. Abu Dawud narrated the hadith 3/484 no. 311, and Hakim graded it sahih 1/531, with Dhahabi concurring with him.