Qaza’ah said Ibn ‘Umar told me “Come, I see off you as the Apostle of Allaah ﷺ saw me off. I entrust to Allaah your religion what you are responsible for and your final deeds.”  

لِي ابْنُ عُمَرَ هَلُمَّ أُوَدِّعْكَ كَمَا وَدَّعَنِي رَسُولُ اللَّهِ ﷺ أَسْتَوْدِعُ اللَّهَ دِينَكَ وَأَمَانَتَكَ وَخَوَاتِيمَ عَمَلِكَ  

When the Prophet ﷺ wanted to say farewell to an army, he would say: I entrust to Allah your religion, what you are responsible for, and your final deeds.  

كَانَ النَّبِيُّ ﷺ إِذَا أَرَادَ أَنْ يَسْتَوْدِعَ الْجَيْشَ قَالَ أَسْتَوْدِعُ اللَّهَ دِينَكُمْ وَأَمَانَتَكُمْ وَخَوَاتِيمَ أَعْمَالِكُمْ