اللَّهُمَّ اغْفِرْ لِحَيِّنَا وَمَيِّتِنَا وَصَغِيرِنَا وَكَبِيرِنَا وَذَكَرِنَا وَأُنْثَانَا وَشَاهِدِنَا وَغَائِبِنَا
Allahummagh-fir li-hayyina wa mayyitina wa saghirina wa kabirina wa dhakarinaa wa unthana wa shahidina wa gha'ibina
O Allah, forgive our living and our dead, our young and our old, our males and our females, our present and our absent.
Part of the Janazah (funeral) prayer du'a. It covers every possible category of Muslim: living, dead, young, old, male, female, present, absent. No one is excluded. When you say this at a funeral, you are not just praying for the deceased — you are praying for the entire Ummah at once. It is one of the most inclusive du'as in the Sunnah.
Related Du'as
لَا إِلَهَ إِلَّا اللَّهُ
There is no deity except Allah. (Encourage the dying person to say these as their last words.)
Sahihاللَّهُمَّ إِنِّي أَعُوذُ بِكَ مِنْ عَذَابِ الْقَبْرِ وَمِنْ عَذَابِ جَهَنَّمَ وَمِنْ فِتْنَةِ الْمَحْيَا وَالْمَمَاتِ وَمِنْ شَرِّ فِتْنَةِ الْمَسِيحِ الدَّجَّالِ
O Allah, I seek refuge in You from the punishment of the grave, from the torment of the Fire, from the trials of life and death, and from the evil of the trial of the False Messiah.
Sahihاللَّهُمَّ لَا تَحْرِمْنَا أَجْرَهُ وَلَا تُضِلَّنَا بَعْدَهُ
O Allah, do not deprive us of his reward, and do not lead us astray after him.
Sahihاللَّهُمَّ ثَبِّتْنِي عِنْدَ السُّؤَالِ، اللَّهُمَّ ثَبِّتْنِي بِالْقَوْلِ الثَّابِتِ فِي الْحَيَاةِ الدُّنْيَا وَفِي الْآخِرَةِ
O Allah, keep me firm at the time of questioning. O Allah, make me firm with the firm word in the life of this world and in the Hereafter.
Sahih