Jami` at-Tirmidhi 1626
جامع الترمذي#1626HasanNarrated 'Adi bin Hatim At-Tai: That he asked the Messenger of Allah (ﷺ), "Which charity is most virtuous?" He said, "The service of a worshipper in the cause of Allah, or providing the shade of tent, or mount in the cause of Allah." [Abu 'Eisa said:] This Hadith has been reported from Mu'awiyah bin Salih in Mursal form.And Zaid has been contradicted concerning part of its chain. He said: And Al-Walim bin Jamil has reported this Hadith from Al-Qasim Abu 'Abdur-Rahman, from Abu Umamah, from the Prophet (ﷺ)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirHasan
Al-AlbaniHasan
Zubair Ali ZaiIsnaad Hasan
In-book reference: 22:8