Sunan an-Nasa'i 1507
سنن النسائي#1507SahihIt was narrated from Abdullah bin Zaid that:The Messenger of Allah (ﷺ) prayed for rain wearing a black khamisah
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih
Al-AlbaniSahih
Zubair Ali ZaiIsnaad Sahih
In-book reference: 17:4