Sunan Abi Dawud 5091
سنن أبي داود#5091SahihAbu Hurairah reported the Messenger of Allah (May peace be upon him) as saying:if anyone says a hundred times in the morning: “Glory be to Allah, the Sublime, and I begin with praise of him”, and says likewise in the evening, no one from the creatures will bring anything like the one which he will bring
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
Zubair Ali ZaiSahih Muslim (2692)
In-book reference: 43:319