Prophet (salallaahu ‘alaihi wassallam) said: “Whoever says when he enters the morning:Radeetu billaahi Rabban, wa bil-Islaami Deenan, wa bi-Muhammadin nabiyyan, (I am pleased with Allaah as the Lord, and with Islaam as a Religion, and with Muhammad as a Prophet), then I am the guarantor that I will take him by his hand until I enter him into Jannah.” Authenticated byShaykh AlbaneeAs-Sahīhah, no. 2686.
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