Zulnun Misri narrates that he saw some youth bowing and prostrating with great zeal, upon inquiring the youth or one of them said “I am seeking permission from Allah” so within moments, a paper sheet came down flying and it had written on it “this is a message from Allah to his pious and grateful slave that you may go back for I have forgiven all your sins”
[Ref: Fadhail Hajj, Fasl 10, Allah waalo ke Qissay , Qissa number 15]
Source: Deobandi Karamaat Blogspot