Sunan Abi Dawud 1961

سنن أبي داود#1961Da'if

Narrated Az-Zuhri: Uthman prayed four rak'ahs at Mina because he resolved to stay there after hajj

Scholarly Authentication

We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:

Al-AlbaniDaif
Muhammad Muhyi Al-Din Abdul HamidDaif
Zubair Ali ZaiDaif

In-book reference: 11:241