Hadith 458:11
Al-Hakam ibn Nafi’ Abu al-Yaman narrated to us, he said: Isma’il ibn ‘Ayyash narrated to us, from Rashid ibn Dawud, from Ya’la ibn Shaddad, he said: My father, Shaddad ibn Aws, narrated to me, and ‘Ubadah ibn al-Samit was present, confirming him. He said: We were with the Prophet, may Allah bless him and grant him peace, and he said: "Is there any stranger among you?"—meaning the People of the Book. We said: "No, O Messenger of Allah." So he ordered the door to be closed, and he said: "Raise your hands and say: 'La ilaha illa Allah' (There is no god but Allah)." We raised our hands for a while, then the Messenger of Allah, may Allah bless him and grant him peace, lowered his hand. Then he said: "Praise be to Allah. O Allah, You have sent me with this word, and You have commanded me with it, and You have promised me Paradise for it, and indeed You do not break the promise." Then he said: "Rejoice, for Allah, the Almighty and Majestic, has forgiven you."
حدثنا الحكم بن نافع أبو اليمان، قال: حدثنا إسماعيل بن عياش، عن راشد بن داود، عن يعلى بن شداد، قال: حدثني أبي شداد بن أوس، وعبادة بن الصامت، حاضر يصدقه قال: كنا عند النبي صلى الله عليه وسلم فقال: " هل فيكم غريب؟ " يعني أهل الكتاب. فقلنا: لا يا رسول الله. فأمر بغلق الباب، وقال: " ارفعوا أيديكم، وقولوا: لا إله إلا الله " فرفعنا أيدينا ساعة، ثم وضع رسول الله صلى الله عليه وسلم يده، ثم قال: " الحمد لله، اللهم بعثتني بهذه الكلمة، وأمرتني بها، ووعدتني عليها الجنة، وإنك لا تخلف الميعاد " ثم قال: " أبشروا، فإن الله عز وجل قد غفر لكم "