Ibn Abi Mulaykah narrated: It was asked from Sayyiduna Ibn Abbas (may Allah be pleased with them both) about children, whether they will be in Paradise. He replied: Musa and Khidr (peace be upon them) debated about this matter, and that is sufficient for you.
Hadith Referenceمسند اسحاق بن راهويه / كتاب التفسير / 581
Hadith Takhrij«مستدرك حاكم : 401/2 . اسناده صحيح .»