The revelation appeared to contradict a statement made by her Chancellor Jeremy Hunt last week and Foreign Secretary James Cleverly this morning on Sky News.
Mr Hunt ruled out committing to any pledges ahead of 31 October when he will announce his spending plan.
The lock ensures pensions rise with inflation.
Read the latest from the Sky News politics Hub: https://news.sky.com/story/politics-latest-chancellor-jeremy-hunt-meets-with-sir-graham-brady-as-new-poll-makes-grim-reading-for-truss-12593360
#JeremyHunt #UKpolitics #SkyNews #liztruss #costofliving #inflation
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