Do we have a record of S.Paul's oral teachings?

[fabio_rocha]

In 2 Thessalonians 2:15 he tells Christians to hold fast on his oral teachings. What are these? Do we have historical proof (like a letter or statement from early church fathers)?

 

[Fr.Charles_Grondin]

2 Thessalonians 2:15

Therefore, brothers, stand firm and hold fast to the traditions that you were taught, either by an oral statement or by a letter of ours.

This is generally seen as an attestation of oral tradition being necessary alongside written tradition (Scripture). Not everything in Christian teaching was written in the New Testament. We can know these teachings by what the Church has taught and how Her members have acted throughout the centuries.