أَسْتَوْدِعُ اللَّهَ دِينَكَ وَأَمَانَتَكَ وَخَوَاتِيمَ عَمَلِكَ
Astawdi'ullaha dinaka wa amanataka wa khawatima 'amalik
I entrust to Allah your religion, your trusts, and the conclusions of your deeds.
The Prophet ﷺ would say this when seeing someone off on a journey. Three things entrusted: your deen (religion — travel can weaken religious practice), your amanah (trusts — responsibilities to family and others), and your khawatim (endings of deeds — the last deed determines your outcome). It is a farewell that covers both worlds — your worldly responsibilities and your spiritual safety.
Related Du'as
اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ اللَّهُ أَكْبَرُ سُبْحَانَ الَّذِي سَخَّرَ لَنَا هَذَا وَمَا كُنَّا لَهُ مُقْرِنِينَ وَإِنَّا إِلَى رَبِّنَا لَمُنقَلِبُونَ
Allah is the Greatest (3x). Glory to the One who has subjected this for us, and we could not have done it ourselves. And indeed, to our Lord we will return.
Sahihآيِبُونَ تَائِبُونَ عَابِدُونَ لِرَبِّنَا حَامِدُونَ
We return repentant, worshipping, and praising our Lord.
Sahihسُبْحَانَ اللَّهِ
Glory be to Allah. (Said when descending a valley or landing.)
Sahihاللَّهُمَّ رَبَّ السَّمَاوَاتِ السَّبْعِ وَمَا أَظْلَلْنَ وَرَبَّ الْأَرَضِينَ السَّبْعِ وَمَا أَقْلَلْنَ وَرَبَّ الشَّيَاطِينِ وَمَا أَضْلَلْنَ وَرَبَّ الرِّيَاحِ وَمَا ذَرَيْنَ أَسْأَلُكَ خَيْرَ هَذِهِ الْقَرْيَةِ وَخَيْرَ أَهْلِهَا وَأَعُوذُ بِكَ مِنْ شَرِّهَا وَشَرِّ أَهْلِهَا وَشَرِّ مَا فِيهَا
O Allah, Lord of the seven heavens and all that they shade, Lord of the seven earths and all they carry, Lord of the devils and all they mislead, Lord of the winds and all they scatter — I ask You for the good of this town and the good of its people, and I seek refuge in You from its evil, the evil of its people, and the evil within it.
Sahih