Did you then think that We created you in vain and that you would not be returned to Us? Exalted is Allah, the True King. There is no god but He, Lord of the Noble Throne. And whoever invokes besides Allah another god for which he has no proof — his reckoning is only with his Lord. Indeed, the disbelievers will not succeed. And say: My Lord, forgive and have mercy, and You are the Best of those who show mercy.
Note: Sheikh Redwan's verification for Majmu'ah ar-Rasa'il (Al-Ma'thurat chapter), footnote no. 82 states: Narrated from Muhammad ibn Ibrahim al-Taymi from his father: "The Messenger of Allah (peace be upon him) sent us on a military expedition and commanded us to recite morning and evening: 'Did you then think that We had created you without purpose?...' When we recited it, we attained spoils of war and returned safely." Narrated by Ibn al-Sunni, Abu Nu'aym, and Ibn Mandah. Al-Hafiz said: The chain of Ibn Mandah is acceptable.