A man from Banu Hanzalah said: "I accompanied Shaddad bin Aws may Allah be pleased with him on a journey, so he said: 'Should I not teach you what the Messenger of Allah used to teach us? That you say: "O Allah, I ask You for steadfastness in the affair and I ask You for determination upon guidance, and I ask You to make me grateful for Your favor, and excellence in worshiping You, and I ask You for a truthful tongue and a sound heart, and I seek refuge in You from the evil of what You know, and I ask You for the good of what You know, and I seek Your forgiveness for that which You know. Verily, You are the Knower of all that is hidden (Allahumma inni as’alukath-thabata fil-amri, wa as’aluka 'azimatar-rushdi, wa as’aluka shukra ni'matika, wa ḥusna 'ibadatika, wa as’aluka lisanan ṣadiqan wa qalban saliman, wa a'udhu bika min sharri ma ta'lamu, wa as’aluka min khairi ma ta'lamu, wa astaghfiruka mimma ta'lamu innaka anta 'allamul-ghuyub).’" He said: 'The Messenger of Allah ﷺ said: "There is no Muslim who lays down to sleep while reciting a Surat from Allah’s Book, except that Allah entrusts an angel, so that nothing approaches him to harm him until he awakens, whenever he awakens".