The Adhan and Iqamah are collective obligations. A person should make Iqamah before starting the Salah. However, the Salah is valid if it is observed without the Adhan and Iqamah due to forgetfulness or lack of knowledge, and so on. Likewise, if a Mu'adhin does not say, 'Al-Salah Khairun Min Al-Nawm' in his call to Fajr (Dawn) Prayer, the Salah will be valid even if there is enough time to repeat it.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.