O Allah, make him for us a precursor, a forerunner and a cause of reward.

Reference:Al-Hasan (Al-Basri) used to recite Surat Al-Fatihah for a child's funeral and then say this. Al-Bukhari, Kitabul-Jana'iz, p. 65.Hisnul Muslim 161

اللهُـمِّ اجْعَلْـهُ لَنا فَرَطـاً وَسَلَـفاً وَأَجْـراً

Transliteration

Allāhumma’j`alhu lanā faraṭan, wa salafan, wa ajra.

Translation

O Allah, make him for us a precursor, a forerunner and a cause of reward.