Thats what Allah called sickness of Heart. The reason for you dubting this is because it is narrated by a Saudi Sheikh, and not by some Halwa eating maulvi, with 2 meter long name, (chisti, peer tariqat, naqshbandi, Ghausia, Qadri, Atari, Noori, Sheikh ul Islam, Rizvi, Peer n peer, Haidri, etc etc etc etc etc)
Open your heart thats what i have to say.