Sahih Muslim, 5554

Anas reported that Umm Sulaim gave birth to a child. She said to him:Anas, see that nothing is given to this child until he is brought to Allah's Apostle (ﷺ) in the morning, so that he should chew some dates and touch his palate with it. I went to him in the morning and he was in the garden at that time having the mantle of Jauniyya over him and he was bus in cauterising (the camels) which had been brought to him (as spoils of war) in victory (over the enemy)

Rapporté par Anas رضي الله عنه : Umm Sulaym a donné naissance à un enfant. Elle lui a dit : « Anas, veille à ce qu’on ne donne rien à cet enfant avant qu’il ne soit amené au Messager d’Allah ﷺ le matin, pour qu’il mâche des dattes et les frotte sur son palais. » Je l’ai amené au Prophète ﷺ le matin, il était alors dans le jardin, portant le manteau de Jauniyya, occupé à marquer au fer les chameaux qui lui avaient été apportés comme butin de guerre