He knows means: either he knows by himself, or others tell him, or he tells him.
Taliye Nuux Ismaaciil Taani wuxuu sheegay in Bulshada Caalamku ogoshahay inay Ciidammada Qaranka Somaliland joogaan halka ay hadda joogaan oo 7KM dhanka Garoowe ka xigta degmada Tuke-raq, “Bulshada Caalamku halkan ayay ogol yihiin, Madaxweynuhu halkan ayuu amar nagu siiyey, markaa bal wixii hadhay (Xuduudka) ha hadho, balse nabad..”ayuu yidhi.