Niggun D'veikus Chabad L’tefilas Shabbos is one of the ten niggunim of the Alter Rebbe. The Rebbe Rashab would sing it during both Shabbos and weekday davenings.

There are quite a few versions of this niggun; being that this niggun was sung spontaneously, as an expression of the deep contemplation and soulful meditation of davening, the exact order and break-up of the stanzas was difficult to verify.

Once, on Purim 5703, the Frierdiker Rebbe requested this niggun be sung, and remarked “when one davens at length, with deep inner work, this niggun naturally flows forth.”