‏الأضاحي : Hadeeth No:4871 Umm Salama reported (these words) directly from Allaah's Messenger (sallAllaahu alayhi wa sallam): If anyone has in his possession a sacrificial animal to offer as a sacrifice (on 'Id al-Adha), he should not get his hair cut and nails trimmed after he has entered the first days of Dhu'l Hijja...

‏الصلاة : Hadeeth No:1136 This hadith has been narrated on the authority of Anas by another chain of transmitters....