Sayyiduna Umar bin Khattab (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: "When Adam (peace be upon him) was about to commit the sin which he committed, he raised his head towards the Throne and said: O Allah! I ask You by the right of Muhammad (peace and blessings be upon him) to forgive me. So Allah Almighty revealed to him: 'Who is Muhammad (peace and blessings be upon him) and what is he?' He said: Your name is Blessed; when You created me, I raised my head towards Your Throne and suddenly saw written there: «لَا إِلٰهَ إِلَّا اللّٰهُ مُحَمَّدٌ رَسُولُ اللّٰهِ» So I knew that the one whose name You have joined with Your name, none can be more honored in Your sight than him.' So Allah Almighty revealed to him: 'O Adam! He is the last Prophet from your descendants, and his Ummah from your descendants will be the last of all communities, and O Adam! If it were not for him, I would not have created you.'"