From Sahih Muslim (Hadith 6768):
A'isha, the mother of the believers, reported that a child died and I said:There is happiness for this child who is a bird from amongst the birds of Paradise. Thereupon Allah's Messenger (ﷺ) said: Don't you know that Allah created the Paradise and He created the Hell and He created the dwellers for this (Paradise) and the denizens for this (Hell)?
Reference: Muslim 6768