ANSWER:

The sunnah is to pray it aloud. If one prays it silently, the prayer is valid.

QUESTION: When we offer witr prayer after Isha it should be silent or loud and what if we pray after tahajjud in the last third night where prayers are loud in this case does witr should be loud

Prayer, Taraweeh, Tahajjud and Qiyam-ul-Layl |