It is narrated from Sayyiduna Salman bin Amir Ad-Dabbi (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "A child is pledged with his 'Aqiqah, so sacrifice an animal on his behalf, and remove the filth from him." (That is, shave his head, perform circumcision, and give him a bath.)