Salim bin 'Abdullah bin 'Umar (May Allah be pleased with them) reported:
When a man was to set out on a journey, 'Abdullah bin 'Umar (May Allah be pleased with them) would say to him: "Draw near so that I may bid farewell to you as Messenger of Allah (ﷺ) used to bid farewell to us. (The Messenger of Allah (ﷺ) used to say: "'Astaudi'ullaha dinaka, wa amanataka, wa khawatima 'amalika' (I entrust Allah with your Deen, your trust and your last deeds)."[At-Tirmidhi].
App reference: Book 2, Hadith 35
Arabic/English book reference: Book 2, Hadith 715