“Trust in God but tie up your camel,” an Arabian proverb states. The proverb is based on a story of a man who was leading his camel home from a day at the market. He had had a good day so he decided to stop at a mosque along the road and pray. He left his camel outside. He stayed inside several hours praying, thanking God and promising to be a good person in the future.
When he came out, it was dark and his camel was gone. He got angry and shook his fist at the sky, yelling to God, “How could you do this to me? I put all my trust in you and this is how you respond?”
A Sufi passing by heard the man yelling and said to him, “Trust God but tie up your camel.”