The Preface to Tacitus' Annals: More Sallust?

Commentators on the Annals naturally observe that the famous first sentence of Tacitus' preface (‘Urbem Romam a principio reges habuere’) alludes to the preface of Sallust's Bellum Catilinae (6.1 ‘Urbem Romam, sicuti ego accepi, condidere atque habuere initio Troiani’). But it seems that none of them has observed a further allusion to Sallust's preface in the last sentence of Tacitus', which is almost equally famous (1.1.3)