Sunan Abi Dawud 1527
سنن أبي داود#1527SahihAbu Musa Al-Ash'ari said:They (the Companions) accompanied the Prophet (ﷺ) while they were climbing the turning of a hill. A man uttered loudly: "There is no god but Allah, and Allah is most great" when he ascended the hill. The Prophet of Allah (ﷺ) said: You are not supplicating one who is deaf or absent. He then said: 'Abd Allah b. Qais. The narrator then transmitted the tradition to the same effect
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 Bukhari (6610) Sahih Muslim (2704)
In-book reference: 8:112