Sunan an-Nasa'i 2923
سنن النسائي#2923SahihAbdullah bin Umar said:"Speak little when you are perfoming Tawaf for you are in a state of Salah". (Sahih Mawquf)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Abu GhuddahSahih Isnaad Mauquf
Al-AlbaniSahih Isnaad Mauquf
Zubair Ali ZaiSahih
In-book reference: 24:306