´It was narrated from Abu Bakr As-Siddiq that the Messenger of Allah (ﷺ) was asked:` “Which actions are best?” He said: “Raising one’s voice and slaughtering the sacrificial animal.”
Hadith Referenceسنن ابن ماجه / كتاب المناسك / 2924
´Abu Bakr As-Siddiq narrated that:` The Messenger of Allah was asked: "Which Hajj is the most virtuous?" He said: "That with raised voices (Al-Ajj) and the flow of blood (of the sacrifice) (Ath-Thajj)."
Shaykh Dr. Abdur Rahman Freywai
1: That is, it should have been sacrificed.
Source: Sunan al-Tirmidhi – Majlis ‘Ilmi Dar al-Da‘wah, New Delhi Edition, Page: 827