Allaah will surely tear open the sky until He looks

“Whoever says, ‘Laa illaaha ilallaahu wahdahu la shareekalahu lahul mulku wa lahul hamdu wa Huwa ‘ala kulli Shay’`in Qadeer’ with a sincere heart, attesting to the truth of that with his tongue, then Allaah will surely tear open the sky until He looks at the person from amongst the people of the earth who said it. And the right of the servant whom Allaah looks at is that He grants him whatever he asked for.”