Sunan Abi Dawud 1441
سنن أبي داود#1441SahihAl-Bara' said:The Prophet (ﷺ) used to recite the supplication in the dawn prayer. The version of Ibn Mu'adh has the words: "sunset prayer
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniSahih
Muhammad Muhyi Al-Din Abdul HamidSahih
Shuaib Al ArnautSahih
Zubair Ali ZaiSahih Muslim (678)
In-book reference: 8:26