لَا إِلَهَ إِلَّا اللَّهُ
La ilaha illallah
There is no deity except Allah. (Encourage the dying person to say these as their last words.)
The Prophet ﷺ said: "Prompt your dying ones to say La ilaha illallah." And: "Whoever's last words are La ilaha illallah will enter Paradise." This is not forced upon the dying — but gently encouraged. The person attending should recite it near them so they may be reminded.
Related Du'as
اللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ فِتْنَةِ الْقَبْرِ وَمِنْ عَذَابِ الْقَبْرِ
O Allah, I seek refuge in You from the trial of the grave and from the punishment of the grave.
Sahihاللَّهُمَّ اجْعَلْ خَيْرَ عُمُرِي آخِرَهُ وَخَيْرَ عَمَلِي خَوَاتِمَهُ وَخَيْرَ أَيَّامِي يَوْمَ أَلْقَاكَ
O Allah, make the best of my life its last part, the best of my deeds their conclusions, and the best of my days the day I meet You.
Hasanاللَّهُمَّ إِنِّي أَسْأَلُكَ الْجَنَّةَ وَأَعُوذُ بِكَ مِنَ النَّارِ
O Allah, I ask You for Paradise and seek refuge from the Fire.
Sahihاللَّهُمَّ إِنْ كَانَ مُحْسِنًا فَزِدْ فِي إِحْسَانِهِ وَإِنْ كَانَ مُسِيئًا فَتَجَاوَزْ عَنْ سَيِّئَاتِهِ
O Allah, if he was a doer of good, then increase his good deeds, and if he was a wrongdoer, then overlook his misdeeds.
Hasan