أَسْتَوْدِعُ اللَّهَ دِينَكَ وَأَمَانَتَكَ وَخَوَاتِيمَ عَمَلِكَ
When the Prophet (peace be upon him) would bid farewell to a person, he would take his hand and would not let go until the person let go of his hand, and he would say: 'Astawdi'ullaha dinaka wa amanataka wa khawatima 'amalik.'