In one narration the wording is: Whenever the Prophet (peace and blessings be upon him) was asked about the mosque whose foundation was laid on piety, he (peace and blessings be upon him) said: "It means this mosque of mine." Imam Ahmad recorded all these narrations, and Imam al-Tabarani recorded them in abridged form. The narrators of both narrations are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب التفسير / 11055