Riyad as-Salihin, Book 6, Hadith 889 (In-Book) ⓘ

Safwan bin 'Assal (May Allah be pleased with him) reported: A Jew asked his companion to take him to the Prophet; and when they came to the Messenger of Allah, they asked him about the nine clear signs (given to Prophet Musa). Safwan narrated the long Hadith which concludes: They kissed the hands and feet of the Messenger of Allah and said: "We testify that you are a Prophet."[At-Tirmidhi]

وعن صفوان بن عسال رضي الله عنه قال‏:‏ قال يهودي لصاحبه‏:‏ اذهب بنا إلي هذا النبي صلى الله عليه وسلم الله عليه وسلم فأتيا رسول الله صلى الله عليه وسلم ، فسألاه عن تسع آيات بينات؛ فذكر الحديث إلي قوله‏:‏ فقبلا يده ورجله، وقالا‏:‏ نشهد أنك نبي‏.‏ ‏(‏‏(‏رواه الترمذي وغيره بأسانيد صحيحة‏)‏‏)‏‏.‏