أَسْتَـوْدِعُ اللَّهَ ديـنَكَ وَأَمانَتَـكَ، وَخَـواتيـمَ عَمَـلِك
Astawdi`ullāha dīnak, wa amānatak, wa khawātīma `amalik.
I leave your religion in the care of Allah, as well as your safety, and the last of your deeds.
Ahmad 2/7, At-Tirmidhi 5/499. See also Al-Albani, Sahih At-Tirmidhi 2/155.