أَسْتَوْدِعُ اللَّهَ دِينَكَ وَأَمَانَتَكَ وَخَوَاتِيمَ عَمَلِكَ
Astawdi'ullaha dinaka wa amanataka wa khawatima 'amalik
Je confie à Allah ta religion, tes dépôts et les conclusions de tes actions.
Dua said by the traveler for the one staying behind
Mutual dua between traveler and resident is from the sunnah.