Lamb/Goat Aqeeqah
"It was narrated from ‘Aa’ishah (may Allaah be pleased with her) that the Messenger of Allaah (peace and blessings of Allaah be upon him) commanded them (to slaughter) two sheep of similar type for a boy and one sheep for a girl." - Narrated by al-Tirmidhi, 1513, who said it is hasan saheeh; classed as saheeh by al-Albaani in Saheeh al-Tirmidhi.