it was narrated that the messenger of god may god bless him and grant him peace said whoever is entrusted with a good deed let him thank him for it. if he is unable to do so let him spread it. if he spreads it he has thanked him for it and if he conceals it he has disbelieved in it.
وقد روي عن رسول الله صلى الله عليه وسلم أنه قال من أودع عرفا فليشكره، فإن لم يمكنه فلينشره، فإذا نشره فقد شكره، وإذا كتمه فقد كفره .