From Sahih Muslim (Hadith 6369):
Ibn 'Umar reported:I saw in a state of sleep as if I have in my hand a piece of silk cloth and there is no place in the Paradise where I intend to reach but that piece of cloth does not fly towards it. I made a mention of it to Hafsa (the sister of Ibn 'Umar) and Hafsa made a mention of it to Allah's Apostle (ﷺ), whereupon Allah's Apostle (ﷺ) said: I find 'Abdullah b 'Umar a pious person
Reference: Muslim 6369