Mujahid (may Allah have mercy on him) says: When I set out for jihad, Abdullah bin Umar (may Allah be pleased with them both) bade us farewell. When he was about to go back, he said: I have nothing with me that I could give you, but I heard the Messenger of Allah (peace and blessings be upon him) say: "Allah, the Lord of Might, protects whatever is entrusted to His protection." I entrust your religion, your trusts and the final outcomes of your deeds to Allah.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب السير / 18577