‏الحج : Hadeeth No:2851 Asma bint Abu Bakr (Allaah be pleased with both of them) reported: We set out (to Mecca) in a state of Ihram. Allaah's Messenger (sallAllaahu alayhi wa sallam) said: He who has the sacrificial animal with him should remain in the state of Ihram, but he who has not the sacrificial animal with him sho...

‏الأضاحي : Hadeeth No:4836 Jabir reported Allaah's Messenger (sallAllaahu alayhi wa sallam) as saying: Sacrifice only a grown-up animal, unless it is difficult for you, in which case sacrifice a ram (of even less than a year, but more than six months' age)....