Jami` at-Tirmidhi 3342
جامع الترمذي#3342Da'ifImran bin Husain narrated that:The Prophet was asked about Ash-Shafi, so he said: “It is As-Salat, some of it is Shaf (even) and some of it is Witr (odd).”
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirDaif Isnaad
Al-AlbaniDaif Isnaad
Zubair Ali ZaiDaif
In-book reference: 47:394