Is there any authentic hadith or Quranic present for the Kalimah Tayyibah? Please give the reference for your answer.
بسم الله الرحمن الرحيم
(Fatwa: 1299/1010/D=11/1434)
Both the particles of Kalimah Tayyibah are mentioned separately in the holy Quran:
لا اله الا الله (الصافات 35)
محمد رسول الله (سوره محمد الآية 19)
In hadith books, Tauheed and Risalat have been mentioned in various methods and forms. There is one hadith narrated by Hadhrat Ibn Abbas (رضي الله).
مكتوب على العرش: لا اله الا الله محمد رسول الله ، لا اعذب من قالها (كنزالعمال ج 1 ص 57 ، فتاوى محموديه ج 1 ص 180)
Allah knows Best!
Darul Ifta,
Darul Uloom Deoband