It is narrated from Sayyiduna Abu Sa'id (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "On the Day of Resurrection, Nuh (peace be upon him) will be called, and he will say: 'Labbayka wa sa'dayka ya Rabb' (O my Lord, here I am, ever ready at Your service and obedience). Allah Almighty will ask: 'Did you convey (My message)?' He will say: 'O my Lord, yes.' Then his nation will be asked: 'Did he convey (My message) to you?' They will say: 'No warner came to us at all.' Then Allah Almighty will say: 'Who will testify on your behalf?' He will say: 'Muhammad (peace and blessings be upon him) and his Ummah.' So they (the Ummah of Muhammad) will testify that he did indeed convey the message of truth, and the Messenger (peace and blessings be upon him) will be a witness over you. This is what is meant by the saying of Allah Almighty: 'We have made you a just and best nation, so that you may be witnesses over mankind' [Al-Baqarah: 143]." He (peace and blessings be upon him) said: "And 'wasat' (middle) means just (upright and best)."
Hadith Referenceمسند أبي يعلى الموصلي / من مسند أبي سعيد الخدري / 1173
Hadith Gradingمحدثین:إسناده صحيح
Hadith Takhrij«حکم الحدیث مسند ابی یعلی محققاً تنسیق حسين سليم أسد - مکتبہ شاملہ :قال حسين سليم أسد: إسناده صحيح . » «قال سعيد بن محمد السناري: صحيح» «أخرجه صحيح البخاري برقم: 4217، وأخرجه سنن الترمذي برقم: 2961، وأخرجه سنن ابن ماجه برقم: 4284، وأخرجه مسند أحمد برقم: 10684، 10878، 11164، وأخرجه فتح الباري برقم: 4217، وأخرجه صحيح ابن حبان برقم: 6477، مسند ابویعلیٰ ترقیم الاثری: 1168»