اللَّهُمَّ اجْعَلْهُ لَنَا فَرَطاً، وَسَلَفاً، وَأَجْراً
O Allāh, make him a preceding reward, a prepayment and a recompense for us.
Reference: O Allāh, make him a preceding reward, a prepayment and a recompense for us. Al-Baghawī in _Sharḥ al-Sunnah_ (5/357).