اللّٰهُمَّ اغْفِرْ لِحَيِّنَا وَمَيِّتِنَا وَشَاهِدِنَا وَغَائِبِنَا وَصَغِيْرِنَا وَكَبِيْرِنَا وَذَكَرِنَا وَاُنْثَانَا اَللّٰهُمَّ مَنْ اَحْيَيْتَهُ مِنَّا فَاَحْيِهِ عَلَى الْاِسْلاَمِ وَمَنْ تَوَفَّيْتَهُ مِنَّا فَتَوَفَّهُ عَلَى الْاِيْمَانِ
Translation: O Allah! Forgive our living and dead, present and absent, young and old, men and women. O Allah! Whoever amongst us is kept alive by You, keep him alive on Islam and whoever You give death to, grant him death on Iman.
If the deceased is an immature boy, the following dua should be recited:
اَللّٰهُمَّ اجْعَلْهُ لَنَا فَرَطًا وَّاجْعَلْهُ لَنَا اَجْرًا وَّذُخْرًا وَّاجْعَلْهُ لَنَا شَافِعًا وَّمُشَفَّعًا
Translation: O Allah! Make him a source of happiness for us, make him a means of reward and a treasure for us, make him an intercessor for us and accept his intercession.
If the deceased is an immature girl, the same dua should be recited with the following changes:
اَللّٰهُمَّ اجْعَلْهَا لَنَا فَرَطًا وَّاجْعَلْهَا لَنَا اَجْرًا وَّذُخْرًا وَّاجْعَلْهَا لَنَا شَافِعَةً وَّمُشَفَّعَةً
Translation: O Allah! Make her a source of happiness for us, make her a means of reward and a treasure for us, make her an intercessor for us and accept her intercession.
Once this dua has been recited, the Takbeer will be said for the fourth time without raising the hands. After this Takbeer, salaam should be made as it is made for any other Salah to complete the Janazah Salah.