Jami` at-Tirmidhi 318

جامع الترمذي#318Sahih

Uthman bin Affan narrated that :he heard Allah's Messenger say: "Whoever builds a Masjid for (the sake of) Allah, then Allah will build a similar house for him in Paradise

Scholarly Authentication

We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:

Ahmad Muhammad ShakirSahih

Al-AlbaniSahih

Bashar Awad MaaroufHasan Sahih

Zubair Ali ZaiSahih

In-book reference: 2:170

All of Jami` at-Tirmidhi