It wasnarrated from Jabir that the Messenger of Allah (ﷺ) said:
"If thechild has cired, the (funeral) prayer should be offered forhim (ifhe dies) and he is an heir." (FR)
English reference (FR): Vol. 4, Book 23, Hadith 2750 (FR)
Arabic reference (FR): Book 23, Hadith 2855 (FR)