Prohibition of Umar regarding traditions

It is mentioned in the text of Tabari that:

“Umar often said: Read only the Quran, which is written on skin and do not interpret it and narrate minimum traditions from the Prophet, as long as I am present among you.”

[Sharh Ibne Abil Hadeed, 3:120 [12/93, Sermon 223]

Tibrani has narrated from Ibrahim bin Abdur Rahman that:

“Umar imprisoned three persons: Ibne Masud, Abu Darda and Abu Masud Ansari and said: You narrate too many traditions from the Prophet, and he confined them in Medina till they were martyred.”

[Tazkeratul Huffaaz, Zahabi, 1:7 [No. 2); Majmauz Zawaaed, 1:149 and the writer of gloss on this book has regarded it as authentic and said: This matter is narrated from Umar through many authentic chains and Umar was dead against the narration of traditions]

Dhahabi has narrated from Abu Salma in Tadhkira that they asked Abu Huraira:

“Did you narrate so many traditions during period of Umar?”

Abu Huraira replied: “If I have narrated as many traditions during period of Umar, I would have definitely been lashed.”

Abu Huraira says: “As long as Umar was alive, I was not able to say: Holy Prophet (s.a.w.a.) said…”

[Tazkeratul Huffaaz, Zahabi, 1:7]