The obligation of Salat-ul-Duha

Q 3: Should Tahajjud (optional late night Prayer) be recited out loud or subvocally?

A: The optional late night prayer is a Jahri Salah (Prayer recited out loud) as indicated by the Sunnah of the Prophet (peace be upon him), and the practices of the rightly Guided Caliphs.May Allah grant us success. May peace and blessings be upon our Prophet Muhammad, his family, and Companions.