Bismillah.

Shaykh and alim of shias al-Muhaqiq al-Karki in his book “Nafahatul Hut fi Lan Jibt wal Taghut” (p 115) said:

Translation:

I say: This beautiful hadeeth is a proof that Abu Bakr and Umar didn’t believe in the prophecy of  Messenger (Muhammad) neither to his Ismah, that he didn’t speak from his own desire, but the revealed revelation.