The Messenger of Allah ﷺ said, "Do not combine my name and my kunyah."
قال حدثنا عبد الرحمن عن سفيان وإسحاق عن سفيان قال سفيان عن عبد الكريم الجزري
أن رسول الله ﷺ قال لا تجمعوا اسمي وكنيتي
No references are available.
Its isnad is sahih. Abdul-Kareem Jazari is Ibn Malik, and he is a well-known reliable narrator whose hadith is found in the collections of the group. Abdul-Rahman bin Abu Amra is the Ansari, of Najjar, one of the trustworthy Successors, born in the time of the Prophet ﷺ. This hadith has come before many times. See 15068 and its cross-references.